• <tr id="yyy80"></tr>
  • <sup id="yyy80"></sup>
  • <tfoot id="yyy80"><noscript id="yyy80"></noscript></tfoot>
  • 99热精品在线国产_美女午夜性视频免费_国产精品国产高清国产av_av欧美777_自拍偷自拍亚洲精品老妇_亚洲熟女精品中文字幕_www日本黄色视频网_国产精品野战在线观看 ?

    Development Report on China Titanium Industry in 2010

    2011-06-04 06:19:12WANGXiangdongLUFushengJIAHongHAOBin
    中國(guó)材料進(jìn)展 2011年6期
    關(guān)鍵詞:省部級(jí)有色金屬鈦合金

    WANG Xiangdong,LU Fusheng,JIA Hong,HAO Bin

    (CTA,China Nonferrous Metals Industry Association,Beijing 100088,China)

    Development Report on China Titanium Industry in 2010

    WANG Xiangdong,LU Fusheng,JIA Hong,HAO Bin

    (CTA,China Nonferrous Metals Industry Association,Beijing 100088,China)

    The operational aspect of China titanium industry in 2010 was reviewed,and the manufacturing,imports and exports of China titanium industry were also introduced.Simultaneously,the price trend of titanium sponge and titanium mill products was analyzed.China titanium industry shown a rising state in 2010,the capacity of titanium sponge was over 100 000 t,the output was 57 770 t,41.6%over than that of 2009.The output of titanium mill products was 38 323 t,53.5%over than that of 2009.The titanium consumption in industries like chemical,aviation,metallurgy,vacuum salt making,and etc.,substantially increased in 2010,thus setting a new record for sales volume of China titanium products,35 636 t.Titanium consumption in chemical industry has been close to 20 000t,turning into the absolute first field in titanium consumption of China.We will grasp the opportunity in the next few years and try our utmost to promote application of titanium materials,for the purpose of greater development.

    titanium sponge;titanium mill product;capacity;output;price

    1 Operational aspects of China titanium industry 2010

    1.1 Productive apacity and volume of production

    1.1.1 Productive capacity

    The productive capacity of sponge titanium and titanium mill products has been increasing till the year 2010.

    According to statistics of 14 enterprises in production,the productive capacity of sponge titanium in China reached 103 500 t in 2010,24 000 t of which came from Zunyi Titanium Plant,accounting for 23.2%of the national capacity.The productive capacity has increased 30.0%compared with that in 2009.

    Based on statistical data from 23 enterprises,the productive capacity of China titanium ingot reached 89 200 t in 2010,25 000 t of which came from Baoji Titanium Industry Co.,Ltd.,accounting for 28.0%of the national capacity.The productive capacity has increased 7.6%compared with that in 2009.

    1.1.2 Volume of production

    Sponge titaniumIn the year 2010,there are totally 14 enterprises engaged in sponge titanium production,volume of which detailed in Table 1.Total amount of sponge titanium production in China reached 57 770 t in the same year,increasing 41.6%compared with that in the previous year,and even 16.4%higher than that in 2008,the annual output of which has ever come to the peak.The volume of production of Zunyi Titanium Plant amounted to 14 248 t,accounting for 24.7%of the national output.The output of the preceding 7 enterprises listed in Table 1 has exceeded 3 000 t without exception,occupying 90% of the total amountin China.Production of sponge titanium has a tend-ency of integration by comparatively large enterprises.

    Table 1 Output of China sponge titanium in 2010

    Titanium ingotThe statistical data of 23 manufacturing enterprises show that the total volume of titanium ingot production in China is 46 262 t in 2010(see Table 2),with an increase of 12.4% compared with that in the previous year.Among all the manufacturers,Baoji Titanium Industry Co.,Ltd.produced 20 000 t of titanium ingot,accounting for 43.2% of the national output;Western Metal Materials Co.,Ltd.and Western Superconducting Technologies Co.,Ltd.,shareholded by Northwest Institute for Nonferrous Metal Research,produced 2 376 t and 2 000 t of titanium ingot,respectively,occupying 9.5%of the total amount in China by their combined effort.

    Titanium powderAccording to statistics of 5 enterprises,the output of China titanium powder in 2010 is 1 713t,with an increase of 36.6%compared with that of the previous year(see Table 3).

    Titanium mill productsBased on statistical data from 33 manufacturing enterprises,the total output of titanium mill products of China in 2010 is 38 323 t,increasing 53.5%compared with that of the previous year,and even 38.2%higher than that in 2008,the annual output of which has ever come to the peak(shown in Table 4).

    In 2010,the output of titanium mill products of Baoji Titanium Industry Co.,Ltd.reached 13 010 t,with an increase of 39.2%compared with that of the previous year,and it accounts for 33.9%of the national gross output.The volume ofproduction ofBaoshan Iron & SteelCo.,Ltd.Special Steel Branch also broke through its low level and reached up to 1 934 t. Western Metal Materials Co.,Ltd.and Western Superconducting Technologies Co.,Ltd.,shareholded by Northwest Institute for Nonferrous Metal Research,manufactured 2 746 t and 1 267 t of titanium mill products,respectively,occupying 10.5% of the total amount in China by their combined effort.

    Classifications of 2010 titanium mill products are shown in the statistical Table 5,from which we could see that all items of titanium products except for the remnant are of substantial increase.The growth rate of sheets is of the maximum,reaching 74.5%.

    Table 2 Output of China titanium ingot in 2010

    Table 3 Output of titanium powder of China in 2010

    Titanium equipment manufacturingStatistics of 11 manufacturing enterprises show that the production value of China's major titanium equipment manufacturers amounted to 1 489.927 million Yuan,with an increase of 39.8%compared with the figure in 2009.Titanium consumption was 4 738.9t,increasing 40.7%;and the number of equipment was 1991,increasing 24.8%(detailed in Table 6).

    Table 4 Output of China titanium mill products in 2010

    Table 5 Group comparison of titanium mill products output in 2009 and 2010

    Table 6 State of operation of China's major titanium equipment manufacturers in 2010

    1.2 Foreign trade

    Imports and exports of China titanium products in 2010 are shown in Table 7,and comparisons between the imports and exports in the first half year of 2010 and the annual volume are shown in Table 8.The total situation of China tianium products is better shown in Table.

    Table 7 Imports and exports of China titanium products in 2010

    Table 8 Comparisons between imports and exports in the first half year of 2010 and the annual volume

    In 2010,the import,export and net export values for sponge titanium of China are 3 370.581 t,3 554.38 t and 183.799 t,respectively;and the corresponding values for titanium mill products are 6 133.515 t,7 551.3 t and 1 417.785 t,thus reversing the tide of net import in 2009.But the developing process shows a state of net import for sponge titanium in the first half of 2010,yet a decreasing state of import and an ascending state of export in the second half of 2010.Therefore,the annual mode still takes on net export.The annual imports and exports for titanium mill products are both buoyant in 2010.

    Main types of imported titanium mill products in our country are still titanium welded tube and sheet.

    From the imported and exported data,we could see that the overseas demand for sponge titanium began increasing in the second half of 2010,indicating the demanding recovery for titanium products in other countries.

    1.3 Market and price

    1.3.1 Sales volume

    The inventory and net export of China sponge titanium production enterprises in 2010 are 2 286 t and 184 t,and the actual domestic sales volume is 57 770-2 286-184=55 300 t,which has increased 32.1%compared with that in 2009.

    The inventory and net export of China titanium mill products in 2010 are 1 269 t and 1 418 t,and the actual domestic sales volume is:38 323-1 269-1 418=35 636 t,which has increased 52.9%compared with that in 2009.

    1.3.2 Demand assignment

    The sales volume of China Ti and Ti alloy mill products in different fields and their relevant proportions of 2010 are shown in Table 9 and Figure 1.In 2010,chemical industry was still the largest application field of titanium in China,setting a record of 19 718 t,which accounted for 53.2%of the national total consumption.Other major fields in titanium consumption are aerospace(9.7%),sports and leisure(7.8%),metallurgy(6.7%),vacuum salt making(6.1%),electrical(3.9%),and medicine(2.9%)in turn.

    Fig.1 Schematic drawing of relevant proportion for titanium consumption of China in 2010

    1.3.3 Price

    In 2010,the price of China main titanium products was slowly recovered,a slower ascending process pushed by cost(shown in Fig.2 and Fig.3).

    2 Operational state analysis of titanium industry in 2010

    2.1 Overall evaluation for operational state of China titanium industry in 2010

    Under the regulation and control of the national macroeconomic policy,Chinese economy got sustainable,speedy and healthy development in 2010,and the international aviation industry also recovered from the second half of 2010.China's titanium industry has got obviously improved under the influence of these two factors.

    Table 9 Sales volume of China main production enterprises for titanium mill products in different fields(t)

    The output and sales volume of China sponge titanium set records of 57 770 t and 55 300 t respectively in 2010,increasing 41.6%and 32.1%compared with the data in the previous year.

    The output and sales volume of titanium mill products also set records of 38 323 t and 35 636 t respectively,increasing 53.5%and 52.9%compared with the data in the previous year.

    Compared with 2009,the imports of sponge titanium fall slightly(7.0%)and the exports reach 3 554.38 t,7.1 times as much as that of 2009.The net export volume of 2010 is 183.799 t.The imports and exports of titanium mill products still remain high(6 133.515 t of imports and 7 551.3 t of exports),realizing an annual net export volume of 1 417.785 t.In 2010,China titanium industry reversed the trend of imports of both sponge titanium and titanium mill products in one stroke.Since China is not capable of producing enough titanium sheets and welded tubes,it is still necessary to import large quantities of these two products based on the data for main types of products imported.

    The price of China sponge titanium and titanium mill products rose slowly in 2010,up to 6.5 ×104¥ /t to the end of the year from 5.8 ×104¥ /t at the beginning,increasing 12.1% .For titanium mill products(TA2 standard sheets,3.0 mm in thickness),the price rose from 10 ×104¥ /t to 11.5 ×104¥ /t with an increase of 15.0%.Considering the rising price of raw materials(high titanium slag,titanium tetrachloride,metallic magnesium,etc.)and energy resources(such as electric power),the price of titanium products is still around the cost line.Therefore,the operating margins of China titanium enterprises are not high.

    2.2 Market analyzing

    Motivated by the national macropolicy of domestic demand stimulation,titanium consumption in industries like chemical,aviation,metallurgy,vacuum salt making,and etc.,substantially increased in 2010,thus setting a new record for sales volume of China titanium products,35 636 t.Titanium consumption in chemical industry has been close to 20 000 t,turning into the absolute first field in titanium consumption of China.The recovery of the international aviation market has also provided beneficial conditions for titanium market.

    Affected by inertia on the other hand,the capacity of China sponge titanium and titanium mill products has been climbing and the datum of the former one has broken through 10 ×104¥ /t,reaching 103 500 t.So the competitive market has resulted in slow rise of price,and this state will remain the same in a few years from now on.

    2.3 Policy analyzingGenerally speaking,

    China titanium industry of 2010 has made steady and rapid progress motivated by the national policy of domestic demand stimulation and“top-ten industrial adjustment plan”.Yet the sustainable growth is also a factor for price hikes,especially the American policy of“Quantitative Easing(QE)”,which intensifies the pressure caused by price rise of the raw materials from the outside,has brought on difficulties for enterprise operation to a certain degree.

    In 2010,the Communist Party and the Government formulated the“Twelfth Five-Year Plan”and put forward the fundamental policies of‘energy-saving& emission reduction,industry upgrading,and growth mode transforming'.And all these are not only necessary and timely for long-tern and healthy industrial development,but also quite essential for harmonious development between human and society,human and nature.For titanium industry,the policies of‘industry upgrading and growth mode transforming'bring two opportunities.One is that the industry upgrading of the whole society will produce larger market for titanium products as new materials.The other is that the enterprise itself could find its foot in competition and gain much more progress only if it pays more attention to technological input and advance,steadily improves the quality of products,reduces energy use,and reduces discharge of‘three wastes'.

    2.4 Opportunity analyzing

    High demand and low price bring difficulties for operations of enterprises,and also create great opportunities for development of titanium industry at the same time.Low price and high properties of titanium has raised the cost performance of titanium materials,and the application of titanium materials under corrosion resistant environment in chemical industry has been further enlarged.These two may be the root cause of the largely increasing output and sales of China titanium materials in 2010.

    We will grasp the opportunity in the next few years and try our utmost to promote application of titanium materials,for the purpose of greater development.

    3 Technical advance

    China titanium industry made sustainable and greater technical progress in 2010.

    Under the support of the national‘863'program,Zunyi Titanium has made a breakthrough in research and development of electronic-grade high-purity titanium and 20 kg 4N5 high-purity titanium has been manufactured.

    Sponge titanium project of Luoyang Shuangrui Wanji Titanium Industry has made significant progress,realizing whole process of production.Its capacity has been extended to 10 000 t/a,and its electric power consumption has been lowered to 26 000kW·h/t due to the adoption of new techniques such as multi-pole electrolyzer,etc.

    The 1 400 mm titanium strip production line of Baoti Group Limited is in stage of installation,and 1 400 mm titanium strip project of Shanghai Baogang Group Special Steel Branch Company is in stage of debugging.

    Electron-beam cold hearth melting furnace of Shanghai Baogang Group Special Steel Branch Company is in production,and plasma cold hearth furnace,in trial production.

    High speed bar&wire line of Baoti Group Limited has been put into production.

    4 500 t hydraulic press machine of Northwest Institute for Nonferrous Metal Research has been put into use and large-size bars with diameter from 400 mm to 600 mm have been manufactured.

    2 800 mm hot rolling mill+1 780 mm cold rolling mill of Northwest Institute for Nonferrous Metal Research have been put into use.

    1 450 mm hot rolling mill+cold rolling mill of Luoyang Ship Material Research Institute has been put into use.

    Scrap recycling line of Baoti Group Limited has been put into operation and about 3 000 t~4 000 t scraps could be recovered each year,thus bring great benefits for the enterprise.

    4 Existing problems in China titanium industry and conclusion

    In the‘Development Report on China Titanium Industry 2009',we analyzed the imperfection of China titanium industry from five aspects,including insufficient industrial agglomeration,poor intrinsic and organic correlation between upstream and downstream enterprises,arduous task of energy saving and emission reduction in titanium smelting,incomplete techniques of titanium processing which fails to fully satisfy the demand of national economy development,and the quality of titanium enterprises which needs to be further improved.The above five problems are being solved gradually in 2010 but not yet completely removed,which have to be further perfected in future development(please refer to the《Development Report on China Titanium Industry 2009》).

    Besides the above five,another problem which becomes more and more serious is the over investment of China titanium industry.The international financial crisis in 2008 and 2009 and output decrease of both sponge titanium and titanium mill products in 2009 have resulted in sharp decline of economic benefits and even zero profit of many enterprises.But huge investment in the past few years has promoted China's production capacity of sponge titanium and titanium ingot coming up to 103 500 t and 89 200 t in 2010,increasing by 30.0%and 7.6%respectively compared with that of the previous year.Excessive growth of production capacity will induce over competition and affect the healthy development of China titanium industry.

    It is necessary for any an enterprise to make sufficient investigation and study,and give full attention to the capital risk,technical risk and market risk before investing in titanium industry.

    趙永慶:男,1966年生,博士、教授、博導(dǎo),國(guó)家鈦合金973計(jì)劃項(xiàng)目首席科學(xué)家,西北有色金屬研究院副總工程師兼科研處處長(zhǎng),陜西省青年聯(lián)合會(huì)常委;自1991年一直從事鈦合金的研發(fā),主持承擔(dān)國(guó)家973、863、總裝預(yù)研項(xiàng)目、軍品配套項(xiàng)目、自然基金重點(diǎn)項(xiàng)目等50余項(xiàng);獲國(guó)家新世紀(jì)百千萬人才、政府特殊津貼專家、陜西省有突出貢獻(xiàn)專家、首屆省科技勞模、國(guó)家軍品協(xié)作配套先進(jìn)個(gè)人等榮譽(yù);獲國(guó)家科技進(jìn)步獎(jiǎng)1項(xiàng)、省部級(jí)科技一等獎(jiǎng)4項(xiàng)、省部級(jí)二等獎(jiǎng)8項(xiàng);獲授權(quán)專利26項(xiàng),發(fā)表論文500余篇,編著《鈦合金及應(yīng)用》、《鈦合金圖譜》、《鈦合金相變與熱處理》等專著3本,參與編寫專著5本。

    楊 合:男,1962年生,教授、博導(dǎo),2003年受聘長(zhǎng)江學(xué)者特聘教授;國(guó)家杰出青年基金獲得者(2002年),入選國(guó)家首批“新世紀(jì)百千萬人才工程”(2004年);1990年哈工大博士畢業(yè),1992年西工大博士后出站破格晉升教授,1994年被評(píng)為博士生導(dǎo)師;國(guó)家“985”工程一級(jí)科技創(chuàng)新平臺(tái)精確塑性成形團(tuán)隊(duì)學(xué)術(shù)帶頭人,國(guó)家基金委機(jī)械學(xué)科“十二五”規(guī)劃“高性能精確成形制造”領(lǐng)域負(fù)責(zé)人,國(guó)家基金委學(xué)科評(píng)審專家組專家,中國(guó)塑性工程學(xué)會(huì)副理事長(zhǎng),材料成形與模具技術(shù)國(guó)家重點(diǎn)實(shí)驗(yàn)室學(xué)術(shù)委員會(huì)副主任,金屬材料擠壓/鍛造國(guó)家重點(diǎn)實(shí)驗(yàn)室學(xué)術(shù)委員會(huì)委員,國(guó)家重大專項(xiàng)“高檔數(shù)控機(jī)床與基礎(chǔ)制造裝備”評(píng)審專家;《塑性工程學(xué)報(bào)》副主編,《航空學(xué)報(bào)》(中英文版)編委;主持國(guó)家自然科學(xué)基金、973、863等項(xiàng)目45項(xiàng);獲國(guó)家發(fā)明獎(jiǎng)、國(guó)家及省部級(jí)科技進(jìn)步獎(jiǎng)8項(xiàng),獲ICTP“六佳論文獎(jiǎng)”,JMPT十佳審稿人,獲教育部“高校青年教師獎(jiǎng)”、中國(guó)機(jī)械工程學(xué)會(huì)青年科技成就獎(jiǎng)等;享受國(guó)務(wù)院頒發(fā)的政府特殊津貼;發(fā)表論文300多篇,SCI收錄100多篇,特邀報(bào)告及SCI等他引400多次,獲國(guó)家發(fā)明專利5項(xiàng)。

    王向東:男,1955年生,中國(guó)有色金屬工業(yè)協(xié)會(huì)鈦鋯鉿分會(huì)副會(huì)長(zhǎng)兼秘書長(zhǎng),教授,北京有色金屬研究總院和昆明理工大學(xué)兼職教授;1998年以前,一直在北京有色金屬研究總院從事鉭鈮冶金研究,在高比容電容器級(jí)鉭粉的研制方面獲得多項(xiàng)部級(jí)科技進(jìn)步獎(jiǎng),在電容器級(jí)鉭粉的摻雜機(jī)理研究方面多有建樹,發(fā)表了系列論文;自1998年以來一直從事鈦行業(yè)的宏觀運(yùn)營(yíng)、發(fā)展對(duì)策以及需求預(yù)測(cè)等方面的探索研究。

    黃 旭:男,1968年生,研究員;1998年

    2010年中國(guó)鈦工業(yè)發(fā)展報(bào)告

    王向東,逯福生,賈 翃,郝 斌
    (中國(guó)有色金屬工業(yè)協(xié)會(huì)鈦鋯鉿分會(huì),北京 100088)

    回顧了2010年中國(guó)鈦工業(yè)的運(yùn)行情況,介紹了中國(guó)鈦工業(yè)的生產(chǎn)和進(jìn)出口情況,分析了海綿鈦和鈦加工材的價(jià)格走勢(shì)。2010年中國(guó)鈦工業(yè)呈明顯回升狀態(tài),海綿鈦產(chǎn)能突破10萬t,產(chǎn)量達(dá)到57 770 t,與2009年相比增長(zhǎng)41.6%;鈦加工材產(chǎn)量達(dá)到38 323 t,與2009年相比增長(zhǎng)53.5%。2010年,中國(guó)化工、航空航天、冶金、真空制鹽等行業(yè)用鈦大幅增長(zhǎng),從而使中國(guó)鈦制品的銷售量達(dá)到創(chuàng)記錄的35 636t。特別是化工用鈦量已近2萬t,成為中國(guó)用鈦的絕對(duì)第一大領(lǐng)域。應(yīng)更好地把鈦材的應(yīng)用推廣工作做好,迎來行業(yè)的更大發(fā)展。

    海綿鈦;鈦加工材;產(chǎn)能;產(chǎn)量;價(jià)格

    TG146.2+3

    A

    1674-3962(2011)06-0014-07

    date:2011-04-20

    Biography:Wang Xiangdong,Professor

    猜你喜歡
    省部級(jí)有色金屬鈦合金
    淮委黨組學(xué)習(xí)貫徹習(xí)近平總書記在省部級(jí)主要領(lǐng)導(dǎo)干部專題研討班上的重要講話精神
    治淮(2022年8期)2022-09-03 03:42:42
    云南警官學(xué)院完成四項(xiàng)省部級(jí)廳級(jí)等科研項(xiàng)目課題結(jié)項(xiàng)
    有色金屬“回暖” 中長(zhǎng)期謹(jǐn)慎樂觀
    Cross-Lingual Non-Ferrous Metals Related News Recognition Method Based on CNN with A Limited Bi-Lingual Dictionary
    “神的金屬”鈦合金SHINE YOUR LIFE
    鈦合金板鍛造的工藝實(shí)踐
    四川冶金(2017年6期)2017-09-21 00:52:30
    上半年230名省部級(jí)官員履新
    醫(yī)用鈦合金的研究與應(yīng)用
    2015年我國(guó)十種有色金屬總產(chǎn)量達(dá)5090萬噸
    2015年河北省地礦局獲省部級(jí)科技獎(jiǎng)項(xiàng)目
    最近最新免费中文字幕在线| 大型黄色视频在线免费观看| 国产一区二区三区综合在线观看| 亚洲色图 男人天堂 中文字幕| 欧美日韩亚洲国产一区二区在线观看| 一本大道久久a久久精品| 12—13女人毛片做爰片一| 丰满的人妻完整版| 高清毛片免费观看视频网站 | 欧美日韩av久久| 男女午夜视频在线观看| 国产精品av久久久久免费| 青草久久国产| xxx96com| 麻豆久久精品国产亚洲av | 国产日韩一区二区三区精品不卡| 动漫黄色视频在线观看| 亚洲男人天堂网一区| 日韩人妻精品一区2区三区| 自拍欧美九色日韩亚洲蝌蚪91| netflix在线观看网站| 天天躁夜夜躁狠狠躁躁| 视频区欧美日本亚洲| 久久性视频一级片| 国产成人av激情在线播放| 一级a爱视频在线免费观看| 国产精品香港三级国产av潘金莲| 国产成人精品无人区| 亚洲成国产人片在线观看| 亚洲av片天天在线观看| 国产av在哪里看| 欧美日韩中文字幕国产精品一区二区三区 | 日本黄色日本黄色录像| bbb黄色大片| xxxhd国产人妻xxx| 少妇粗大呻吟视频| 90打野战视频偷拍视频| 精品熟女少妇八av免费久了| 亚洲av成人一区二区三| 国产真人三级小视频在线观看| 国产有黄有色有爽视频| 亚洲免费av在线视频| 91在线观看av| 国产又爽黄色视频| 夜夜爽天天搞| 国产精品一区二区免费欧美| 女人被躁到高潮嗷嗷叫费观| av在线天堂中文字幕 | 日韩中文字幕欧美一区二区| 国产精品一区二区三区四区久久 | 欧美黑人欧美精品刺激| 国产精品成人在线| 日韩大尺度精品在线看网址 | 亚洲午夜理论影院| 满18在线观看网站| 一个人观看的视频www高清免费观看 | 夫妻午夜视频| 中文字幕最新亚洲高清| 午夜91福利影院| 又黄又粗又硬又大视频| 天堂俺去俺来也www色官网| 婷婷精品国产亚洲av在线| 亚洲精品一区av在线观看| 国产又爽黄色视频| 中文字幕人妻丝袜一区二区| 亚洲七黄色美女视频| 欧美日韩视频精品一区| 国产成人av教育| 久久久久精品国产欧美久久久| 国产1区2区3区精品| 丰满的人妻完整版| 免费高清在线观看日韩| a在线观看视频网站| av福利片在线| 国产成人欧美在线观看| 在线观看舔阴道视频| 亚洲成人精品中文字幕电影 | 窝窝影院91人妻| 91字幕亚洲| 久久精品人人爽人人爽视色| av片东京热男人的天堂| 国产精品99久久99久久久不卡| 在线永久观看黄色视频| 一区在线观看完整版| 国产激情欧美一区二区| 色在线成人网| 久久精品91无色码中文字幕| 国产精品电影一区二区三区| 亚洲成人免费av在线播放| 国产有黄有色有爽视频| 成人影院久久| 男人舔女人的私密视频| 黄频高清免费视频| 伦理电影免费视频| 精品电影一区二区在线| 午夜亚洲福利在线播放| 91大片在线观看| 国产一区二区三区视频了| 啦啦啦 在线观看视频| 黄色片一级片一级黄色片| 国产亚洲精品综合一区在线观看 | 久久国产精品人妻蜜桃| 伊人久久大香线蕉亚洲五| 大陆偷拍与自拍| 女人精品久久久久毛片| 一二三四在线观看免费中文在| 他把我摸到了高潮在线观看| 操出白浆在线播放| 成人永久免费在线观看视频| 黄色女人牲交| 99热国产这里只有精品6| 中文字幕高清在线视频| 久久人人精品亚洲av| 欧美成人性av电影在线观看| 国产亚洲欧美精品永久| 黄色 视频免费看| 国产精品爽爽va在线观看网站 | 精品免费久久久久久久清纯| 欧美大码av| 色哟哟哟哟哟哟| 欧美日韩中文字幕国产精品一区二区三区 | 国产成人影院久久av| 久久热在线av| 欧美av亚洲av综合av国产av| 亚洲av熟女| 国产精品一区二区在线不卡| 国产高清视频在线播放一区| 久久人妻熟女aⅴ| 丰满人妻熟妇乱又伦精品不卡| 999久久久精品免费观看国产| 国产黄a三级三级三级人| 免费在线观看亚洲国产| 变态另类成人亚洲欧美熟女 | 成人黄色视频免费在线看| 精品高清国产在线一区| 亚洲成人精品中文字幕电影 | 亚洲自偷自拍图片 自拍| 一区福利在线观看| 国产国语露脸激情在线看| 欧美人与性动交α欧美软件| 亚洲,欧美精品.| 亚洲一卡2卡3卡4卡5卡精品中文| 黑人操中国人逼视频| 天天影视国产精品| 嫁个100分男人电影在线观看| 99精品在免费线老司机午夜| 天天影视国产精品| 久9热在线精品视频| 亚洲欧美一区二区三区久久| 1024香蕉在线观看| 国产成人av教育| www日本在线高清视频| 黄色女人牲交| 操美女的视频在线观看| 亚洲人成网站在线播放欧美日韩| 免费高清在线观看日韩| 男女高潮啪啪啪动态图| 日韩欧美国产一区二区入口| 又大又爽又粗| 亚洲专区字幕在线| 亚洲男人天堂网一区| 久久这里只有精品19| 亚洲一区中文字幕在线| 国产精品日韩av在线免费观看 | 亚洲一区中文字幕在线| 琪琪午夜伦伦电影理论片6080| 亚洲第一欧美日韩一区二区三区| 国产成人欧美| 国产亚洲精品久久久久5区| 日本三级黄在线观看| 亚洲成人久久性| 叶爱在线成人免费视频播放| 国产日韩一区二区三区精品不卡| 亚洲国产精品999在线| 在线观看午夜福利视频| 亚洲午夜理论影院| 欧美午夜高清在线| 少妇的丰满在线观看| 中文亚洲av片在线观看爽| 午夜福利免费观看在线| 国产激情久久老熟女| 丝袜在线中文字幕| 香蕉丝袜av| 国产人伦9x9x在线观看| 91成人精品电影| 18禁裸乳无遮挡免费网站照片 | 国产麻豆69| a级毛片黄视频| 一二三四社区在线视频社区8| 日韩一卡2卡3卡4卡2021年| 成年版毛片免费区| 嫩草影院精品99| 国产精品永久免费网站| 无遮挡黄片免费观看| 国产成人影院久久av| 精品卡一卡二卡四卡免费| 久久精品aⅴ一区二区三区四区| 国产欧美日韩一区二区精品| 一二三四在线观看免费中文在| 美女高潮到喷水免费观看| av网站在线播放免费| 久久婷婷成人综合色麻豆| 中文字幕另类日韩欧美亚洲嫩草| av国产精品久久久久影院| 波多野结衣av一区二区av| 男人的好看免费观看在线视频 | 国产精品久久视频播放| 国产亚洲精品综合一区在线观看 | 男男h啪啪无遮挡| 欧美黑人精品巨大| 热99re8久久精品国产| 国产精品99久久99久久久不卡| 国产精品九九99| 亚洲avbb在线观看| 99国产极品粉嫩在线观看| 免费看十八禁软件| 色婷婷久久久亚洲欧美| 日韩视频一区二区在线观看| av国产精品久久久久影院| 久久久久亚洲av毛片大全| 国产精品av久久久久免费| 日本vs欧美在线观看视频| 欧美日韩国产mv在线观看视频| 亚洲成人精品中文字幕电影 | 亚洲欧美精品综合一区二区三区| 亚洲狠狠婷婷综合久久图片| 精品久久久久久久久久免费视频 | 国产成人一区二区三区免费视频网站| 亚洲精品在线美女| 欧美日韩乱码在线| 精品高清国产在线一区| 久久天堂一区二区三区四区| 久久久国产一区二区| 少妇粗大呻吟视频| 久久久国产精品麻豆| 啪啪无遮挡十八禁网站| 午夜福利,免费看| 男人操女人黄网站| 精品高清国产在线一区| 亚洲自拍偷在线| 亚洲国产精品一区二区三区在线| 亚洲欧洲精品一区二区精品久久久| 在线观看www视频免费| av在线天堂中文字幕 | 色播在线永久视频| 国产欧美日韩一区二区三区在线| 国产伦人伦偷精品视频| 国产精品一区二区在线不卡| 99国产极品粉嫩在线观看| 亚洲精品中文字幕一二三四区| 黑人猛操日本美女一级片| 999精品在线视频| 欧美日韩乱码在线| 欧美大码av| 国产深夜福利视频在线观看| 久久久久久久精品吃奶| 人妻丰满熟妇av一区二区三区| 亚洲自拍偷在线| 视频在线观看一区二区三区| 一级毛片女人18水好多| 乱人伦中国视频| 精品福利永久在线观看| 丰满迷人的少妇在线观看| 午夜精品国产一区二区电影| 露出奶头的视频| 午夜老司机福利片| 又黄又粗又硬又大视频| 一级a爱片免费观看的视频| 日韩人妻精品一区2区三区| 窝窝影院91人妻| 韩国精品一区二区三区| 99国产综合亚洲精品| 日韩一卡2卡3卡4卡2021年| 老司机深夜福利视频在线观看| 男人舔女人下体高潮全视频| 中亚洲国语对白在线视频| 伦理电影免费视频| 少妇 在线观看| 91精品三级在线观看| 日本wwww免费看| 香蕉久久夜色| 天天影视国产精品| 国产成人精品无人区| 国产人伦9x9x在线观看| 亚洲精品在线美女| 国产亚洲欧美在线一区二区| 亚洲免费av在线视频| 亚洲专区国产一区二区| 一个人观看的视频www高清免费观看 | 人人澡人人妻人| 一a级毛片在线观看| 国产区一区二久久| 乱人伦中国视频| 国产熟女午夜一区二区三区| 999久久久精品免费观看国产| av超薄肉色丝袜交足视频| av电影中文网址| 国产精品日韩av在线免费观看 | 身体一侧抽搐| 欧美日韩视频精品一区| 又紧又爽又黄一区二区| 久久久久久久久久久久大奶| 高清欧美精品videossex| 五月开心婷婷网| 黄色怎么调成土黄色| 国产欧美日韩一区二区三| 色综合欧美亚洲国产小说| 亚洲精品一区av在线观看| av福利片在线| 欧美一区二区精品小视频在线| 在线观看免费日韩欧美大片| 亚洲精品一卡2卡三卡4卡5卡| 日本a在线网址| 在线国产一区二区在线| 久久久国产精品麻豆| 国产99久久九九免费精品| 午夜免费观看网址| 91大片在线观看| 国产主播在线观看一区二区| 日本三级黄在线观看| 国产又爽黄色视频| 成人三级做爰电影| 亚洲第一av免费看| 成熟少妇高潮喷水视频| 精品国产一区二区三区四区第35| 一级片'在线观看视频| 久久国产乱子伦精品免费另类| 国产成人av教育| 老熟妇仑乱视频hdxx| 如日韩欧美国产精品一区二区三区| 777久久人妻少妇嫩草av网站| 亚洲七黄色美女视频| 国产伦一二天堂av在线观看| 中文字幕人妻丝袜制服| 久久精品亚洲熟妇少妇任你| 亚洲一码二码三码区别大吗| 亚洲一区中文字幕在线| 夜夜爽天天搞| 在线观看66精品国产| 久久久久久久久久久久大奶| 变态另类成人亚洲欧美熟女 | 成人影院久久| 精品乱码久久久久久99久播| 久久热在线av| 亚洲精品一二三| svipshipincom国产片| 男女下面进入的视频免费午夜 | 亚洲aⅴ乱码一区二区在线播放 | 精品国产一区二区久久| 成人国产一区最新在线观看| 老司机午夜十八禁免费视频| 村上凉子中文字幕在线| 成人国语在线视频| 美女大奶头视频| 国产成人欧美在线观看| 亚洲国产毛片av蜜桃av| 狂野欧美激情性xxxx| 精品久久久久久,| 亚洲一区高清亚洲精品| 香蕉丝袜av| 精品卡一卡二卡四卡免费| 久久久国产精品麻豆| 真人做人爱边吃奶动态| 久久久精品欧美日韩精品| 精品卡一卡二卡四卡免费| 国产免费现黄频在线看| 国产亚洲精品一区二区www| 大陆偷拍与自拍| 咕卡用的链子| 天堂中文最新版在线下载| 亚洲专区字幕在线| 亚洲av熟女| 欧美激情久久久久久爽电影 | 法律面前人人平等表现在哪些方面| 久久国产精品男人的天堂亚洲| 中文字幕色久视频| 色在线成人网| 女人精品久久久久毛片| 久久国产精品男人的天堂亚洲| 99久久综合精品五月天人人| 在线观看一区二区三区| 黑人猛操日本美女一级片| 国产免费av片在线观看野外av| 国产精品永久免费网站| 欧美黄色片欧美黄色片| 日日爽夜夜爽网站| 亚洲性夜色夜夜综合| 9191精品国产免费久久| 男女之事视频高清在线观看| 午夜激情av网站| 亚洲一区二区三区欧美精品| 欧美日韩黄片免| 大香蕉久久成人网| 欧美日韩亚洲高清精品| 日本撒尿小便嘘嘘汇集6| 午夜影院日韩av| www国产在线视频色| 美女午夜性视频免费| 法律面前人人平等表现在哪些方面| 久热这里只有精品99| 国产人伦9x9x在线观看| 亚洲精品美女久久av网站| 在线观看免费高清a一片| 90打野战视频偷拍视频| 日韩国内少妇激情av| 黄频高清免费视频| 国产精品1区2区在线观看.| 久久久久国内视频| 丝袜在线中文字幕| 国产麻豆69| 无遮挡黄片免费观看| 欧美成人免费av一区二区三区| 99re在线观看精品视频| 中文字幕最新亚洲高清| 免费高清视频大片| 9191精品国产免费久久| 国产成人精品无人区| 亚洲精品一卡2卡三卡4卡5卡| 日韩大码丰满熟妇| 色哟哟哟哟哟哟| 一进一出抽搐动态| 国产亚洲精品第一综合不卡| 久久久国产一区二区| 国产蜜桃级精品一区二区三区| 最新美女视频免费是黄的| 一二三四社区在线视频社区8| 久久 成人 亚洲| 成在线人永久免费视频| 一边摸一边抽搐一进一出视频| 国产精品久久视频播放| 国产成人欧美| e午夜精品久久久久久久| 国产真人三级小视频在线观看| svipshipincom国产片| 免费在线观看完整版高清| 亚洲 欧美一区二区三区| 午夜福利在线免费观看网站| 久久久久国产精品人妻aⅴ院| 麻豆av在线久日| 亚洲一区二区三区色噜噜 | 中文亚洲av片在线观看爽| 欧美色视频一区免费| 韩国精品一区二区三区| 老司机福利观看| 两个人免费观看高清视频| 久久久久久久久免费视频了| 国产一区二区在线av高清观看| 韩国av一区二区三区四区| 丝袜在线中文字幕| 日韩有码中文字幕| 国产成人系列免费观看| 多毛熟女@视频| 亚洲av美国av| 一区二区三区国产精品乱码| 欧美成人性av电影在线观看| 国产精品亚洲一级av第二区| 女警被强在线播放| 日本欧美视频一区| 国产aⅴ精品一区二区三区波| 91精品三级在线观看| 色综合婷婷激情| 天堂中文最新版在线下载| 久热爱精品视频在线9| 男人操女人黄网站| 亚洲美女黄片视频| 亚洲精品国产色婷婷电影| 长腿黑丝高跟| 欧美人与性动交α欧美软件| a在线观看视频网站| 日韩免费av在线播放| 桃色一区二区三区在线观看| av视频免费观看在线观看| 一级毛片女人18水好多| 欧美激情高清一区二区三区| 国产精品亚洲一级av第二区| 99久久国产精品久久久| av在线播放免费不卡| 国产精品一区二区免费欧美| 大陆偷拍与自拍| 97人妻天天添夜夜摸| 如日韩欧美国产精品一区二区三区| 国产深夜福利视频在线观看| 国产激情久久老熟女| 99国产精品免费福利视频| 色综合婷婷激情| 亚洲aⅴ乱码一区二区在线播放 | 丝袜美腿诱惑在线| 99国产综合亚洲精品| 国产aⅴ精品一区二区三区波| 久热这里只有精品99| 成人三级做爰电影| 国产三级在线视频| 亚洲欧美激情综合另类| 一进一出抽搐gif免费好疼 | 亚洲欧美一区二区三区久久| 国产av精品麻豆| 99国产精品一区二区三区| 日日干狠狠操夜夜爽| 亚洲色图av天堂| 亚洲人成电影观看| 妹子高潮喷水视频| 国产精品久久视频播放| 曰老女人黄片| 欧美成人性av电影在线观看| 欧美性长视频在线观看| 91成年电影在线观看| 色播在线永久视频| 午夜福利免费观看在线| 亚洲中文日韩欧美视频| 19禁男女啪啪无遮挡网站| 国产精品电影一区二区三区| 亚洲熟妇熟女久久| 日韩大尺度精品在线看网址 | 久久久精品欧美日韩精品| 国产成人精品久久二区二区免费| 久久久久久久午夜电影 | 国产精品爽爽va在线观看网站 | 99在线视频只有这里精品首页| 亚洲自拍偷在线| 黑人欧美特级aaaaaa片| 日本免费a在线| 动漫黄色视频在线观看| 国产成人欧美在线观看| 天堂动漫精品| 色婷婷久久久亚洲欧美| 午夜精品久久久久久毛片777| 波多野结衣av一区二区av| 两个人看的免费小视频| 日本免费a在线| 国产99白浆流出| 狂野欧美激情性xxxx| 欧美黑人欧美精品刺激| 欧美 亚洲 国产 日韩一| 中文欧美无线码| 天天躁狠狠躁夜夜躁狠狠躁| 夜夜躁狠狠躁天天躁| 一夜夜www| 久久婷婷成人综合色麻豆| 欧美成人免费av一区二区三区| 日本黄色日本黄色录像| 激情在线观看视频在线高清| 一进一出抽搐动态| 黄色女人牲交| 欧美日韩国产mv在线观看视频| 十八禁人妻一区二区| 国产亚洲精品第一综合不卡| 久久久久久久久免费视频了| 日本a在线网址| 成人av一区二区三区在线看| 色综合欧美亚洲国产小说| 亚洲熟妇熟女久久| 91老司机精品| 日韩欧美免费精品| 国产一区二区三区视频了| 中出人妻视频一区二区| 啦啦啦 在线观看视频| 老司机在亚洲福利影院| 国产麻豆69| a级片在线免费高清观看视频| 精品久久久精品久久久| 亚洲五月婷婷丁香| 亚洲成人免费av在线播放| 国产成人av激情在线播放| 日日干狠狠操夜夜爽| 老熟妇仑乱视频hdxx| 国产精品 欧美亚洲| 日韩视频一区二区在线观看| 久久精品91蜜桃| 精品欧美一区二区三区在线| 国产精品九九99| 侵犯人妻中文字幕一二三四区| 两人在一起打扑克的视频| 免费在线观看完整版高清| 久久精品亚洲熟妇少妇任你| 在线观看免费午夜福利视频| 亚洲精品久久成人aⅴ小说| 亚洲av片天天在线观看| 亚洲七黄色美女视频| 麻豆成人av在线观看| 欧美成狂野欧美在线观看| 欧美成人午夜精品| 两性夫妻黄色片| 日本黄色视频三级网站网址| 免费在线观看黄色视频的| 国产真人三级小视频在线观看| 欧美大码av| 嫩草影院精品99| 国产精品98久久久久久宅男小说| 国产精华一区二区三区| 妹子高潮喷水视频| 欧美日韩福利视频一区二区| 精品人妻1区二区| 免费av中文字幕在线| 黄色视频,在线免费观看| 精品国产亚洲在线| 老司机福利观看| 午夜福利免费观看在线| 动漫黄色视频在线观看| 欧美另类亚洲清纯唯美| 大陆偷拍与自拍| 老司机靠b影院| 午夜久久久在线观看| 日韩视频一区二区在线观看| 亚洲精品国产区一区二| 日本三级黄在线观看| 香蕉丝袜av| 午夜精品国产一区二区电影| av天堂久久9| 亚洲一码二码三码区别大吗| 乱人伦中国视频| 亚洲在线自拍视频| 精品福利永久在线观看| 国产亚洲精品第一综合不卡| 国产激情欧美一区二区| 久久久久九九精品影院|