We are the major sanitary stainless steel fittings, tubings, valve, pumps,tanks manufacturer in China. The standards are 3A,DIN,ISO,SMS. etc. and all kinds of OEM. The materials are 304, 304L,316L. Fitting: Elbow,Tee,Cross,Clamp,Ferrule,hanger,reducer, nut, liner, male.. Tubing: Welding tubing. ASTM 269, 270, 312, 554. Valve: Butterfly valve, check valve, safe valve, stop valve .... If you are interested in our products, pls do not hesitate to inform us. Thanks Ben.Wu