Media Summary: Under ISO9001, we own a set of complete and effective quality system in our factory. Authorized by the American Petroleum ... We can also offer 1. O.D: 8 5/8 2. Grade: J55 K55 N80 L80-1 N80-Q C90 P110 3. Thread: BC LC STC 4. Standard: Tianjin Dalipu Oil Country Tubular Goods CO.,Ltd,
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Under ISO9001, we own a set of complete and effective quality system in our factory. Authorized by the American Petroleum ... We can also offer 1. O.D: 8 5/8 2. Grade: J55 K55 N80 L80-1 N80-Q C90 P110 3. Thread: BC LC STC 4. Standard: Tianjin Dalipu Oil Country Tubular Goods CO.,Ltd, 1. O.D: 8 5/8 2. Grade: J55 K55 N80 L80-1 N80-Q C90 P110 3. Thread: BC LC STC 4. Standard: Product Description: All products will be made according to
