NC50-70(4-1/2IF) 164.7 mm Bevel Diameter 9150 or 9450 mm Length Drill Collar
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COMPANY PROFILE We(SWS) is a professional company engaged in the development, manufacturing, sales and service of downhole oil tools; Advanced downhole tool manufacturing technology from the U.S. and Canada is used to provide casing accessories that exceed......
Jiangsu Service Petroleum Technology Co., Ltd
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