Stainless Steel Blind Nut with Chain Material: SS304,SS316L Size:1"-4",DN25-DN100 Stainless Steel Blind Nut with ChainFeatures:1) Material quality: SUS304, SUS316L2) Flux domination of pipeline: DN25-150 and 1"-6"3) Standards: ISO, DIN, SMS, IDF 4) It is used for food industrial, such as dairy industry, beer industry and others Sainless Seel Bind Nut with Chain