... 3,OEM : Half Knurling Machine Parts Welding DN15 mini ball valve OEM Machine Parts Welding mini ball valve OEM (stainless steel ... High Temperature, Low Temperature, Medium and Normal TemperatureMedia: Water, Oil,Gas, steam, oil products, nitric acid, acetic acidPort Size: 1/2 ... Competitive Price Material: Stainless Steel Type: Ball Valve Machine Parts Welding mini ball valve OEM (stainless steel 316)