日韩黄色特级片一区二区三区-熟妇人妻一区二区三区四区91-用鸡鸡插女生小穴的视频-欧洲一区1区三区3区视频

Wellhead      X-mas Tree      valve      Tube remit      bop      Casting products      reducer      Safety valve   YANCHENG SHENHUA MACHINERY MANUFACTURE CO.,LTD Add:No. 1299, Jianhu Avenue South Road, Jianhu County Tel:+86－515－86500588     86500699 Fax:+86－515－86500599     86500699 zip:224761 Email:zxw@ycshenhua.com

You are the location  >> Shenghua Machinaty manufacture Co.,Ltd >> News     Take a quick look! Detailed explanation of commonly used fishin.. 2024/9/27 1718 Heavy! The China Shale Oil and Gas Exploration and Development .. 2024/9/12 557 A must see! Common calculation formulas for well control 2024/9/20 1693 Nexen has been fully merged into CNOOC 2024/9/20 1663 recruitment 2024/9/23 1738 100 questions about common faults at oil production sites 2024/9/24 2251 drilling jingle 2024/10/9 1810 Throttling kill manifold 2023/6/18 1119 Small walnut effect greatly 2023/6/21 878 After a 75 transfer energy state vice President! 2023/7/4 2181 A major breakthrough! China's cnooc first complete intellectual.. 2023/6/28 2058 Officer xuan! Sinopec and set up a new company 2023/6/29 2107 China national offshore oil: resign qing-long xia, executive di.. 2023/7/3 2105 17.69 million tons! In the first half of the oilfield productio.. 2023/7/3 2097 The drilling quality, the relationship between speed and influe.. 2023/2/7 1345 Must read! Christmas tree, 2023/2/5 1542 Four picture, a formation of oil and gas resources - you'll be .. 2023/2/3 1345 Thousands of meters deep well is drilling in our country first... 2023/1/28 1392 Oil and gas company 2023/1/20 1281 First   Up   Down   End   Page:1/1   21/Page   Goto: 1 Page

Home | About us | News | Products | Honors | Feedback | Contact us  COPYRIGHT[C]2011 YANCHENG SHENHUA    ALL RIGHTS RESERVES