pp pipe fittings plastic socket Strict quality control, Superior Mould quality for long term production. pp pipe fittings plastic socketStep1.R&D We support customer R&D ... 350 L5, Materials used in productionPP, ABS, Nylon, PC, PMMA,PE, PS, PC/ABC, PBT, APG, PES, PEEK, POM6, Mold Material45 ... through strict QC and are with well-done package. pp pipe fittings plastic socket