... steel quick fitting B type precision casting A,B,C,D,E,F,DC,DP type good quality,outlook and price stainless steel ... quick fitting B typecamlock coupling1.manufacturer.2.stainless steel precision investment casting3.CNC ... coupling1.size:1/2"-6".2.body:stainless steel 304 316.3.gasket:buna(NBR),viton ... ), BS21,DIN259,DIN2999,ISO228. stainless steel quick fitting B type