... "-24" Material:SUS304,SUS316L Certificate:ISO9001-2008,CE Stainless Steel Welding Neck Flange1) Standard: DIN, ISO, etc.2) Size: DN10- ... dairy products,pharmacy,beverage, food,petroleum,chemical industry,papermaking,natural gas extensively. The company absorbed the domestic and international advanced technology ... together,realize win-win,create the beautiful future. Stainless Steel Welding Neck Flange