Chang-Yi has been dedicating to develop high quality and good performance automotive parts for original equipment replacements and sporting modified components. Product materials are included Gray cast iron, Ductile cast iron, ADI cast iron, forged aluminum alloy etc. We produce the parts via precision machines, know-how, and extensive experience. Quality control is also important and support our auto parts for standing on the world market. We control quality in rigorous attitude for each step of running professional inspection machines. In addition to our own products, we're pleasure to provide OEM or ODM service. Elastic customize requirement, strict quality control, on time shipment, satisfied aftermarket service are our reputations. Our business have been steadily growing and expanding through the effort and trust with customers.