1.PP compression coupling mould 2.Material: PP, PVC, ABS, PP-R 3.Size:1/2" to 4" 4.function: make ... many PP-R, ABS , PP, PVC compression couplings.The following are pp compression couplings.NameDescriptionFounded time2003Specification:1/2''-10''Mould ... with Traveling- Wire Electrodes, Mold Surface Finishing and Polishing, Molding Surface Finishing and symbols, Special Textures, Sand Blasting and ...