... : API 598 Size: 1/8 -4 stainless steel coupling O.D.M Cangzhou qiancheng Stainless Steel Products Co. Ltd. is a ... , gate valves, strainers, sanitary valve & fitting, quick couplings such as type A,B,C,D,E,F,DC,DP,pipe fittings such ... as elbow,tee,bushing,cap,union,socket ,nipple ,plug and so ...