Yangzhou Changzhe Testing Machinery Co., Ltd. is registered in Yangzhuang Industrial Park, Zhenwu Town, Jiangdu District, Yangzhou City. The registration authority is the Jiangdu District Market Supervision Administration of Yangzhou City, and the legal representative is Zhu Kai. The business scope includes rubber testing machinery, testing instruments, production equipment, parts processing, maintenance, and sales, as well as the production and sales of automotive parts. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments)