Henan Yuda Valve Manufacturing Co., Ltd. engages in professional R&D, production, sales of valve manufactures, located in YUDA industrial park. The company main products weld butterfly valve, wafer butterfly valve, flange butterfly valve ;DN40---DN3200, 0.1Mpa-6.4Mpa ;we supply different body/disc materials such as cast iron ,cast steel ,stainless steel and bronze according to different working conditions .We also have the foundry works can be supply kinds of blanks .The best quality ,excellent ...