| Shandong Zhongtan Intelligent Equipment Co., Ltd | 2022-03-01 | Gearbox Assembly, Steel Products, Explosion-Proof Electrical Equipment | 10000K CNY | مدعوم |
| Shandong Pumei Intelligent Equipment Co., Ltd | 2020-04-20 | Gearbox Assembly, Rescue Products, Supporting Equipment | 3000K CNY | مدعوم |
| Changzhou Zhongyong Transmission Equipment Co., Ltd | 2013-06-06 | Gearbox Assembly, Kf Series Gear Reducer, R Series Gear Reducer | 5000K CNY | غير مدعوم |
| Jiangsu Taigong Gearbox Co., Ltd. Changzhou Branch | 2025-07-10 | Gearbox Assembly, Planetary Reducer, Gearbox Gear Shaft | - | غير مدعوم |
| Taixing Shuntai Reducer Co., Ltd | 2009-04-24 | Gearbox Assembly, F-Series Reducer, K Series Reducer | 10000K CNY | غير مدعوم |
| Zhonglian Machinery Equipment (Shandong) Co., Ltd | 2021-03-11 | Gearbox Assembly, Coal Mine Transfer Transport Aircraft, Scraper Machine Accessories | 3000K CNY | غير مدعوم |
| Shandong Zhongtuo Machinery Co., Ltd | 2013-03-06 | Gearbox Assembly, Dredging Robot, Tracked Forklift | 3000K CNY | مدعوم |
| Shandong Yaxin Mining Machinery Co., Ltd | 2020-07-29 | Gearbox Assembly, Reproduction Machine Accessories, Connecting Ring | 10000K CNY | مدعوم |
| Shandong Beike Transmission Equipment Co., Ltd | 2018-09-13 | Gearbox Assembly, Rv Gearbox, Gear Reducer | 3000K CNY | مدعوم |
| Shandong Shengyuan Heavy Industry Co., Ltd | 2019-09-10 | Gearbox Assembly, Hydraulic Slurry Pump, Guardrail Cleaning Machine | 3000K CNY | غير مدعوم |