UnionChina 304 316L Butt Weld, Rjt, Idf, Clamp, SMS, DIN 11851 Stainless Steel Hygienic Butterfly Valves, Find details about China Tri Clamp Butterfly Valve, Clamp Ferrule Butterfly Valve from 304 316L Butt Weld, Rjt, Idf, Clamp, SMS, DIN 11851 Stainless Steel Hygienic Butterfly Valves