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Used In Oil And Gas Line caliber 406.4mm-1422.4mm Lsaw Steel Pipe 1. Grade: API 5L PSL2 2. Size: Ф323.8~Ф1822.4mm 3. Standard: API Spec 5L, GB9711, ASTM A53, ASTM A252 ASTM A500 4. End Design: Beveled ...