China Souda Coupling Manufacturing Co.,Ltd. provides Gear Couplings,Geared shaft coupling including GA, GB, GC, GD, GE, GF, GS, GZ, GJ Series. Suoda Coupling core products contain Gear Couplings, Grid Couplings, Disc Couplings,Universal Joints and their components with various models and sizes. More details on website: http://www.suodacoupling.com/