... ISO, DIN,SMS etc Sanitary Stainless Steel Butterfly Clamped Valve Features:1) Sanitary stainless steel butterfly valve2) Material quality: SS304, ... stainless steel valve as follows: 1) Butterfly valve: threaded butterfly valve, quick-installed butterfly valve, weldedbutterfly valve, flange butterfly valve, threaded-welded butterfly valve, flange-weldedbutterfly valve, extended welded butterfly valve ...