... 3)DN20-150,1"-6",or required Stainless steel Sanitary Welded Check Valve 1.SS304,SS316,SS316L,CF8M,or required 2 ... 3.DN20-150,1"-6",or required •Stainless steel Sanitary Welded Check Valve•Material quality: SUS304, SUS316,SUS316L,CF8M,or required ... pls don't hesitate to contact us. Namestainless steel sanitary welded check valveNo.shsd013MaterialSUS304,SUS316,SUS316L,CF8M,or requiredSizeDN25-DN150&1 ...