We are a specialized manufacturer of chain wheels and cranks. Our annual output is 8 million sets. Our enterprise is specialized in six main products, such as stainless chain wheels and cranks (BCC), light-alloy BCC products, super quick index shifting gears, ordinary BCC products, multistep BCC products and one-piece crank and chain wheel series.The surface finish of our products may be plastic-coated, steel-coated, chrome-plated, electro-coated or others according to customers' requirements. Our products are manufactured according to ISO9001 standard and are exported to many countries...