Valves manufacturer / supplier in China, offering Wcb Triple Offset Oil Valve for Industrial Applications - Oil Valve, Pneumatic Stainless Steel Wafer-Type Double Eccentric Industrial Butterfly Air Valve for Water Oil Gas with API 609 & Tsg Certified - Marine Hardware, China Factory Customized Industrial Wafer-Type Fluorine-Lined Butterfly Air Valve with API 609 Certified Pn16 for Corrosive Media and so on.