1.Quick Coupling Type A, 2.Size1/2"-4", 3.Material: ... :1) The sol process precision casting products: * a variety of low-pressure ball valve, globe valve, ... check valve, gate valve, Y type filter* 150LBS * Quick Connector Fittings, Model A, B, C, D, E , F ... -type pipe fittings products;5) designed and manufactured according to customer needs all kinds of special products Quick Coupling Type A