Plastic color masterbatches, plastic functional masterbatches manufacturer / supplier in China, offering Belief Manufacturing Add Ratio 2%-5% Plastic PE Pipes Grey Masterbatch, Belief Manufacturing Add Ratio 2%-5% Plastic PP Pipes Grey Masterbatch, Belief Manufacturing 60% Titanium Dioxide TiO2 3-8% Add Ratio Plastic Sheets White Masterbatch and so on.