stainless 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. ... 3"-4" 200PSI(14.8bar) 2 1/2" 225PSI(15.8bar)6" 150PSI(10.5bar)6.application:oil,petroleum,chemical ... ), BS21,DIN259,DIN2999,ISO228. stainless steel quick fitting B type