drill collar,drill pipe of all kinds,stabalizer

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drill collar,drill pipe of all kinds,stabalizer
Posting date : Mar 31, 2008
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72-
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Henan Shenlong Petroleum Drilling Tools Co.,Ltd is one of TOP 10 manufacturers producing drill collar, heavy weight drill pipe. Drill collars we produce is made from 4145H forging or rolling modified steel.Raw Materials are all from Top China Special Steel Group, so from the first beginning, we can assure high quality. We manage our Production and Inspection Process strictly according to API SPEC 7 requirements. All connections are phosphate-coated to improve resistance to corrosion. We can also do copper plating according to clients' requirements. We offer slip groove, elevator groove to improve handling efficiency and safety. Slip and elevator groove are machined in compliance with API RP 7G guidelines. We can also make stress relief groove according to clients' requirements. We provide free thread protector for both pin and box. Different sizes we produce is from 3 1/2" to 11", our strength is large size like above 9" and small size like below 4 3/4". Shenlong promises our product with superior quality, long life, short delivery time and competitive price. Welcome your enquiry any time ! Welcome your enquiry any time ! ery time and competitive price. Welcome your enquiry any time !

ECROBOT CO., Ltd, Business Registration Number : 220-88-71747, CEO J.W.Park, TEL : +82-2-552-7676, E-mail : E-mail : Contact us
Address : (Hwanghwa B/D 11F, Yeoksam-dong)320, Gangnam-daero, Gangnam-gu, Seoul, South Korea
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