Established in 1990, Changzhou Wujin Yonglong Aluminum Case Co., Ltd. is a manufacturer specialized in Aluminum Cases Which is located in a coast city changzhou with convenient traffic and well developing industry. Another company Changzhou Jinshang Precision Hardware Co., Ltd. was established in 2012. Involved in high-precision mechanical parts manufacturing industry. Products are widely used in automobile precision parts. space communications, electrical appliances, military electronics and other industries If you are interested in any of our products or would like to disc...