CNZH supplies high-quality butterfly valves Pneumatic Butterfly Valve Application: pipe system of Dairy, winery, food industery, pharmaceutical etc Type: Weld/weld thread/thread clamp/clamp Material: SUS304, SUS316L Standard: DIN SMS ISO SMS: 25, 38, 51, 63.5, 76.1, 101.6 DIN: 15 ,25, 32, 40, 50, 65, 80, 100, 125, 150 OEM availabel for oversea whole distributators large quantity order in Cheap