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1inch 6000psi ASTM A105 SAE End 2 Floating Balls and 1 Needle Valve Dbb (double block and bleed) Valve, Find Details and Price about Valve Ball Valve from 1inch 6000psi ASTM A105 SAE End 2 Floating Balls and 1 Needle Valve Dbb (double block and bleed) Valve - Suzhou Cowinns Industry Equipment Co., Ltd.