... Size: DN25-DN150, 1"-6" Check Valve - Welded Product name:weld check valve1.Size: DN25-DN150, 1"-6" 2.Standards: DIN ... , Beverage, Beer, Wine, Pharmacy, biology, etc.5.Other: Manual, Pneumatic, Electric operation is exchangeable Main Product:Valves,Pipe Fitting,Live Joints ... sample charge from first quantity order 8) OEM is welcome Wenzhou Weld Check Valve