How about Changzhou Tianshan Heavy Industry?

Changzhou Tianshan Heavy Industry Machinery Co., Ltd. is the largest professional supporting high-precision heavy gear enterprise in China. Tianshan Heavy Industry has provided gear sets for many well-known domestic enterprises such as Taiyuan Heavy Industry, Zhong Er Group, China Zhong Yi, Sany Heavy Industry and TSMC Group. If you apply to work in such an enterprise, it is still a good choice. For reference.