Hangzhou Fuyang Chengke Communication Materials Co., Ltd. is a leading manufacturer of high-quality plastic masterbatches, defoamers, and fillers in China. Established in 2012, we offer over 20,000 tons annual capacity, 10+ advanced twin-screw extruder lines, and ISO 9001, ISO 14001, and ISO 45001 certifications. Our products include carbon black masterbatches, flame retardant masterbatches, ultra-quiet core layer particles, and plastic defoamers, widely used in pipe extrusion, injection molding