sanitary stainless steel butterfly valve: 1)Material: SS304,SS316L 2)Size:DN25-200or1"-8" 3)Standards:DIN/SMS/ISO.. sanitary stainless steel butterfly valveMaterial: SUS304, SUS316 Standard: DIN,SMS,3A, ISOSize:1"-8", or required Application: Pharmacy, beer, food, dairy, beverage, cosmetic, chemical industry. If you are interested in, please don't hesitate to contact us.