stainless steel quick coupling C precision casting A,B,C,D,E,F,DC,DP type good quality,outlook and ... coupling1.manufacturer2.stainless steel precision investment casting3.CNC precisely machined.A Couplingcamlock coupling1.size:1/2"-4"2.body:stainless steel ... .1(NPT), BS21,DIN259,DIN2999,ISO228 stainless steel quick coupling C