Shanghai Bosin Drive Machinery Co., Ltd. is a modern enterprise specialized in the research and development, manufacture and sale of machinery drive parts and precision power transmission components including keyless locking device,couplings,pulleys,chain wheels ,torque limiters and so on. Our company boasts advanced production and quality control technology and sophisticated production and inspection equipment.Owing to international production management all our products are in line with the standard of developed countries and regions such as Europe ,Japan,America,India and more. Bosin has gained a good reputation for superior quality,delivery and service in the market .Bosin has become an advance and export-oriented joint enterprise. We are looking forward to cooperating with you in the near future.