1/2"-6" stainless steel quick couplings 1.Mateiral:304,316. 2.Process:investment casting. 3.Certification:ISO9001. 1/2"-6" stainless steel quick couplings.Description: Welcome international order ,please attach ... ,CF8M,CF3,CF3M,,304,316 1.4301,1 .4306,1.4401,1.4404,1.0619 Body material/ballStainless steel 316/304TypeA,B,C,D,E,F,DC ...