Refrigerant Gas, R134A, R404A manufacturer / supplier in China, offering Df-16A Synthetic Resin Polymer PTFE Promotes Dispersion Powder, Polytetrafluoroethylene Powder Molding Synthetic Resin Polymer F201, Polytetrafluoroethylene Pipe Factory Direct Raw Material Polymer Synthetic Resin Seal with Powder Df203 and so on.