Factory Introduction Zhejiang Taizhou Sanmen Xinda Transmission Belt Co., Ltd. was establised in the year of 1979 with our core business in PU timing belt,ribbed belt,rubber timing belt and Vbelt. We have a R&D department, and also a sales department, with excellent production equipment, professional research personel, advanced manufacturing technique,and a highstandard quality manegement system. We are the earliest factory to produce timing belt for electric power tool in China and the only factory which passed the quality control test conducted by the Technical Supervision Bureau in ZheJiang province. Quality Certification