... contact with the product is AISI304, AISI304L, AISI316L 4.Applications: Food, Dairy, Beverage, Beer, Wine, Pharmacy, biology, etc.5.Other: Manual, Pneumatic ... .Quick response,all your question will be replied within 24hours. butterfly valve(sanitary butterfly valve,stainless steel pneumatic valve) Butterfly Valve(Sanitary Butterfly Valve,Stainless Steel ...