Steel Pipe & TubeChina API 600/6D 150lb, 300lb, 600lb Pneumatic/Electric/Motorized Stainless Steel 316/304 Cast/Forging Wafer Lug Butterfly Valves with API, ANSI, ASME, BS, DIN, Find details about China Double Flange High Performance, Butterfly Valve from API 600/6D 150lb, 300lb, 600lb Pneumatic/Electric/Motorized Stainless Steel 316/304 Cast/Forging Wafer Lug Butterfly Valves with API, ANSI, ASME, BS, DIN