... 1.Quick Coupling Type A, 2.Size1/2"-4", 3.Material:stainless steel ADAPTOR FEMALE 1.Wax-lost precision casting,2.Size1/2"-4 ... valve, gate valve, Y type filter* 150LBS * Quick Connector Fittings, Model A, B, C, D, E , F, DC, ... DP* sanitary fittings, valves, etc.; 2) * a variety of forged products, the high-pressure welding, threaded pipe ... needs all kinds of special products Quick Coupling Type A