... : Stainless Steel (304, 304L,316, 316L and etc) Size: 1/2"-8"(DN15-200) Standard: ISO, 3A , DIN, SMS, IDF,RJT ... Valve02Standard: ISO, 3A , DIN, SMS, IDF,RJT , etc.03Size: 1/2”-8”(DN15-200)04Material: Stainless Steel (304, 304L,316, 316L ... , we can develop certain production according to your drawing. Butterfly Valve with high quality and competitive price