ZheJiang Tianyu Machinery Co.,ltd is a modern enterprise integrated in researching, developing, producing and selling various power transmission parts. It is located in Sanjie High-tech Industry Park with convenient transportation; 

Our products include standard sprockets, taper bore sprockets, special sprockets, couplings, gears and racks, pulleys, timing belt pulleys, Sleeves and so on; meanwhile we also produce according to customers' drawings or samples. Our products are exported all over the world,