We have investment casting foundry, make stainless steel ball valve, check valve, y strainer, and other Customer required valves and castings ; can make CF8 ,cf8m cf3 and wcb and other DIN material , with thread and flange end; with certificate of ISO CE .valves can be use in medicine,food and chemistry and water . products have been exported to all over the World, includes Japan, spain, Australia and Canada etc