Taizhou Proch Auto Parts Co., Ltd are engaged in manufacturing realiable and qualified Overrunning Alternator Pulley. Proch R&D and good teamwork makes us professional in producing OAP. Proch OAP design has get independent patent technology. And PROCH pulleys have been qualified after tens of thousands of hours of the load simulation and millions of kilometers of road test, ensuring Proch pulley have the same or more superior performance and life comparing with imported products. We always adhere to the idea: "careful, harmony, innovation" , "quality to create value for customers" as our aim of management. We will continue to study the introduction of advanced technology, adopt scientific management method, and provide high quality product and best service to our customers.