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Page Views: 56 Date Added: 04/29/2008 Last Updated: 05/12/2008 Expiry Date: 04/29/2009 Description: Drill collars we produce is made from 4145H forging or rolling modified steel. 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. 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! Additional photos drill collar

Company Information (Henan Shenlong Petroleum Drilling Tools Co.,Ltd)

Company Profile: Henan Shenlong Petroleum Drilling Tools Co., Ltd, a U.S.-China joint enterprise, is one of world leading manufacturers of the high quality petroleum drilling tools based in mainland China. We are dedicated to servicing the oil and gas exploration and oil drilling industries on a global basis. Our main products are slick drill collar, spiral drill collar, heavy weight drill pipe, stabilizer and Kelly. Shenlong’s products have been proved by many oilfields: there is no thread gluing and no fracture after they drill 600 hours. Our products can last much longer time than any other competitors'. We assure every piece of product leaving our facility conforms to the requirements of API SPEC 7-1. Drill collars we provide are from 4 3/4" to 11", Heavy weight drill pipes are from 3 1/2" to 5 1/2" We provide free thread protector for both box and pin. We are confident to provide you with high quality casting on basis of competitive price, And you will be assured that your every enquiry will receive our prompt and careful attention! Website URL: http://www.petrodrillingtools.com Year Established: 2006 Products/Service: Drill collar, Sprial drill collar, Heavy weight drill pipe, Stabilizer, Non-magnetic drill collar, Kelly, Drill stem subs

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