1)Name:coupling fittings 2)Materials:PVC-U;PVC-C 3)Sizes:1/2"-4" 4)Standards:ANSI,DIN,BS,JIS 5) ... Certificate:CE,ISO9001 1) Name: coupling fittings2) Materials: PVC-U;PVC-C3 ... /2";2";2-1/2";3";4"4) Standard: ANSI, DIN, CNS, JIS, BS5) High quality,Clear, light weight, rustless, ... can make any style plastic products according to clients' samples. coupling fittings