Gainjoys Vehicle is one of The Largest Companies Engaging in The Manufacturing of cranes, excavators, Rollers, Mixers, Loaders, Bulldozers and Trucks, in China. Gainjoys Shenyang Technologies LTD Company is one of the largest and most significant group companies engaging manufacturing, OEM, ODM, wholesaling, retailing and exporting etc. in Shenyang, Liaoning, China.