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Multi-Standard ANSI Cl125 Cl150 GB DIN Pn6 Pn10 Pn16 JIS5K 10K Multi-Drill Universal Fit Wafer Type Loosen Disc Marine Butterfly Valve, Find Details and Price about Worm Gear Butterfly Valve Wafer Butterfly Valve from Multi-Standard ANSI Cl125 Cl150 GB DIN Pn6 Pn10 Pn16 JIS5K 10K Multi-Drill Universal Fit Wafer Type Loosen Disc Marine Butterfly Valve - Sunfair Fluid Control Co., Ltd