stainless steel quick release coupling connectors B 1.Size:1/2-6 2.Types: A,B, ... :free samples 4.CE,ISO stainless steel quick release coupling connectors B 1,Material: 304,316,316L,304L,CF8,CF8M stainless ... , and some corrosive liquids. Casting method is investment casting.5,Standard:DRN2828,MIL-C274876,Size:1/2”-6”7,Types: A ... .040.0417-209-132-3 stainless steel quick release coupling connectors B