This product adopts modularity design and is widely used in passenger trains (such as international passenger train from Peiking to Moscow), electric forklifts as well as all kinds of electric motors. Today, Tianyi's DC JCQ contactors are used by many companies such as American GE, Changchun passenger Train works of railway Department, Changchun specific electrical machinery factory, Baoji Electrical forklift, etc. You can visit www.dccontactor.com.cn for more information. Should you have any questions, please feel free to contact us.