Shanghai Great Wall Reducer factory is a specialty factory which designs, produces and sales reducer, gearbox, gear motor, etc transmission facilities. The products are widely used in metallurgy, mineral, architecture, shipbuilding, petroleum combination, aviation space-flight, lift routing, textile mechanic, general mechanic and other domains. Our products are best selling in mainland and export to Southeast Asia, Middle Asia, European and North America, all these articles had already passed ISO9001: 2000 certification. The factory has advanced technology, precise facilities, complete testing program, and perfect quality control system. Our factory adopts advanced CAD and CIMS, we can not only design and manufacture products for convert customers but also open up new products for clients in stock. Our factory s slogan: Sincerity, Specialty, Innovation and Benefit each other, welcome clients to visit our corporation and give advice to us! Our main products: reducer, gear motor, bevel gear, worm-gear motor, cycloidal reducer, variator, planetary gear motor, planar double-enveloping worm gear.