1.Quick Coupling Type B 1/2, 2.Size1/2"-4", 3.Material: ... , globe valve, check valve, gate valve, Y type filter* 150LBS * Quick Connector Fittings, Model A, B, C, D, E , F, DC ... , the high-pressure welding, threaded pipe fittings* all kinds of flange;3) M Series Steel Parts: Elbow , tee, pipe cap, live ... manufactured according to customer needs all kinds of special products Quick Coupling Type B 1/2