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Metal To Metal Trunnion Mounted Ball Valve Specification Design Standard: Design: API6D, ASME B16.34 Test: API598 Products range: Size 2″ ~ 48″ (DN50~DN1200) درجه بندي 150LB ~ 1500LB جسماني مواد ڪاربن اسٽيل اسٽيل ٽرمين A105+ENP,13Cr,F304,F316