Plastic color masterbatches, plastic functional masterbatches manufacturer / supplier in China, offering Belief Manufacturing 40% Carbon Black 2% Add Ratio Plastic Seedling Tray Black Masterbatch, Belief Manufacturing 30% Carbon Black 2% Add Ratio Plastic Seedling Tray Black Masterbatch, Belief Manufacturing 40% Carbon Black 2% Add Ratio Blister Plastic Cup Cap Black Masterbatch and so on.