... DN20-150,1"-6",or required Stainless steel Sanitary Welded Check Valve 1.SS304,SS316,SS316L,CF8M,or required 2.ISO ... DN20-150,1"-6",or required •Stainless steel Sanitary Welded Check Valve•Material quality: SUS304, SUS316,SUS316L,CF8M,or required•Standard ... If you are interested in, pls don't hesitate to contact us. Namestainless steel sanitary welded check valveNo.shsd013MaterialSUS304,SUS316,SUS316L, ...