... Shangdong China. Our popular products are spacers, any kind of pins and shaft of engine in standard or as required as they are ... diesel engine and so on.We have been cooperating with some famous motorcycle companies like Jianshe-Yamaha, Jianshe-Honda, B& ... , Zongshen, Yingang, Guangzhou Dayang, Guangzhou Tianma, Ji nan Qingqi. And some products have been exported to other countries or regions, Germany ...