Valen Machinery Parts Co., Ltd.

Da Hai Sprocket Factory locates in the motorcycle sprocket manufacturing center of China Shimenqiao Township, Renqiu City, Hebei Province. It established in 1976, and it covers an area of 15000 square meters. It is fully equipped with high accuracy machinery, including the latest generation of CNC computer design and computer controlled metal cutting equipment. Da Hai is producing a full range of sprockets for the aftermarket as well as for the OEM.The essence of a high quality sprocket is in the high precision of manufacturing and the inherent quality of the material. Through accurate machining and by using only the best grade of C45 High Carbon steel for rear sprockets and SCM415 steel alloy for front sprockets, Da Hai ensures Maximum Durability performance for both Drive chain and sprockets. Da Hai manufactures sprockets the right way, by hobbing, machining and drilling. This is the only proven way to achieve the closest of tolerances and the best teeth profiles. Heat treated and hand finished to perfection, all Da Hai sprockets meet or exceed the highest possible quality standards set for the motorcycle industry. Each sprocket goes through up to 25 production stages and 10 individual quality controls checks before it is ready to leave the factory. Our products sell well in North America, South America, Southeast Asia, Africa, and the Middle East. Resort to good quality, competitive price and perfect service, we win the majority of world market.We insist on playing our advantages in resources and capabilities to make our products famous in the world, to make Da Hai a leading sprocket enterprise in the world!