1.Quick Coupling Type B 1/2, 2.Size1/2"-4", 3. ... , globe valve, check valve, gate valve, Y type filter* 150LBS * Quick Connector Fittings, Model A, B, C, D, E , F, DC ... ;3) M Series Steel Parts: Elbow , tee, pipe cap, live access, oracle application, etc.4) compression-type pipe fittings products;5 ... manufactured according to customer needs all kinds of special products Quick Coupling Type B 1/2