Sun Electronic Co., Ltd is a specialized modern private high-tech enterprise in researching, developing, manufacturing and marketing of ignition coil, ignition wires, ignition module, rubber boots and oxygen sensors. The company is located in Tianjin which is economic center of North China and the second largest port in China.......
　　

One year or 20000km；
Two years or 50000km；
Three years or 100000km。