1)Name:good quality double union ball valve 2)Materials: PVC-U,PVC-C,PP,PP-H 3 ... )Sizes: 3/8"~10" 4)Certificate: CE,ISO9001:2008 good quality ... double union ball valveMaterials: PVC-U,PVC-C,PP,PP-H,PVDFSizes ... make any style plastic products according to clients' samples. good quality double union ball valve