13 3/8'' K55 SC & 2 3/8" L-80 SMLS EUE PIN & PUP JOINT BLANKS 4FT COUPLINGS MADE FROM SEAMLESS CARBON STEEL
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COMPANY PROFILE Jiangsu Service Petroleum Technology Co., Ltd. is committed to researching and supplying high-level petroleum downhole tools and drilling equipments, and has obtained the certificates of API Q1, API 5CT, ISO9001 quality system certification......
Jiangsu Service Petroleum Technology Co., Ltd
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