YiDi Precision Machinery is an integrated factory‑trade enterprise based in Shanghai, China.

We specialize in the research, development and manufacturing of power transmission components, including universal joints, locking assemblies, locking nuts & backstops, and transmission chains. We supply both standard series products and custom‑made non‑standard parts according to customer drawings or samples.

Our production workshop is equipped with complete CNC machining, milling and grinding equipment. Strict quality inspection is implemented throughout every production procedure, from raw material incoming inspection to finished‑product testing before delivery.

Supported by our factory manufacturing capacity and Shanghai foreign‑trade service advantages, we deliver stable‑quality products with competitive prices for global clients.
We accept pre‑payment terms, arrange FOB Shanghai shipment, and provide factory‑issued inspection documents, shipment photos and packaging records for every order.

We focus on long‑term cooperation. Whether you need standard spare parts or complex customized transmission solutions, welcome to contact YIDI Precision Machinery.