... . 3.DIN,SMS,ISO,IDF,AS,BS,BPE Standard Stainless Steel Seamless Pipe (ISO9001:2008,CE,TUV certified)Specification: DN10-DN300 ... quotation, competitive price, punctual delivery and guaranteed quality.We also supply butterfly valve,ball valve,check valve,diaphragm valve,safety ... .Polish requirements( surface accuracy)As a professional manufacturer, we can offer all kinds of the sanitary valves and ...