It is controled by hydraulic to reach seat hanging. Working with SQ seting-ball carrier, it is suitable for applications in horizontal and highly-deviated wells. Sealing element is made of nitrle/ ....
Dezhou Zhonglian Petroleum Machinery CO., LTD is located in Xinhua industrial park of Dezhou, in Shandong province. Dezhou Zhonglian Petroleum Machinery CO., LTD set product design, manufacturing, ....
Combining the advantages of forging overcoat resistance to wear and high chromium wear-resistant anti-corrosion inner sleeves.The overcoat is a forged steel. The hardness of high chromium inner after....