1.Type: check valve 2.Material: 304,304L,316L 3.Size: 1"-6",DN25- ... ,3A,SMS,ISO,IDF, RJT Quick DetailsMaterial: Stainless SteelTechnics: CastingType: check valvePlace of Origin: Zhejiang China (Mainland)Model Number: CN-002Brand ... :180/240/320/400 grit3)specific size: Stainless steel industrial check valve