Zhejiang biographies transmission machinery co., LTD is a professional engaged in designing, manufacturing, sales in the integration of large joint-stock enterprise, specializing in the production of SWC, SWP and SWL cross axle type universal coupling, and various types of automobile, agricultural machinery, engineering machinery transmission shaft. Compared with other structural type universal coupling and the shaft, the product has the reasonable design, big transmission torque, high transmission efficiency, low noise, long service life, widely application, etc. 
China