... *Size:DN15-100, 1"-4" *Standard: DIN,SMS,ISO,3A Pipe and fitting*Materials: AISI 304 or AISI 316L. Finish: Semi bright, bright ... , Best Choice for Sanitary Valves and Pipe FittingsWelcome to Wenzhou Kingstone Valve&Pipe Fitting Co., Ltd.We are at your service at any time! Pipe and fitting