Drill Collar (api)

Drill Collar (api)

Country of Origin China
MOQ 1
Price USD /
Category Apparel & Fashion Apparel Stock

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Drill Collar (api)

Our drill collars are manufactured from 4145h modified steel. \n\ndrill collars are bored and drifted to api spec7-1 and fully heated to meet or exceed the mechanical property requirements of api spec7. hardness range of 285-341hb and a charpy v notch impact value of 54joules are guaranteed one inch below the surface. \n\nsress-relief features are manufactured in compliance with api spec7, unless otherwise specified by customers. shenlong offers optional elevator and slip recesses to improve handling efficiency and safety.
Country of Origin: China

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Shenlong petroleum drilling tools co., ltd. a sino-us joint enterprise, is one of the leading manufactures of drilling tools in mainland china. we manage our production line and inspection process according to the requirement of api.\r\n\r\nour main products include slick drill collar, spiral drill collar, non-magnetic drill collar, heavy weight... View Profile

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