Stainless Steel Sanitary Check Valves Welded and Clamp 1. Material: Stainless Steel 2. Check Valves:Welded and Clamp About usKaysuns Industry Ltd.(Wenzhou Kaize Trading Co., Ltd ... only stainless steel materials, but also super duplex steel (S32750,S32760, etc.), special austenite stainless 310H, 347H, 317L, ... SpecificationStainless Steel Sanitary Check Valves Welded and Clamp ...