Sichuan Metals & Minerals Import & Export Co. holds advanced manufacturing equipments， precise testing and detection center, strict quality detection system. Our main products include all kinds of standard and nonstandard expanding-close cover、 synchronous belt wheel、 chain wheel、 conical socket、 bevel gear, rack, roller chain etc; our production history for all kinds of standard chain wheel and synchronous belt wheel has exceeded 15 years. Now our all drive member products have exported to foreign countries; we have developed into a group company including a complete system from raw material supply and production process to checking and packaging, storage and transportation; we also are the largest drive member production base in west of China.