Aosheng Technology Co., LTD is engaged in the R&D, production, marketing, and sales of Spring machinery, located famous manufacturing city dongguan, at Wan Jiang area? a very advantageous geographical location, with convenient transportation hub. This ...

Initiated by the former China Railway Locomotive & Rolling Stock Industrial Corp., South Huiton Co. Ltd. is a public company with high and new technology, which was founded restructuring Guiyang Freight Car Works through raising funds. our belongs to CSR.We ...