| Shandong Huayu Heavy Industry Machinery Co., Ltd | 2020-12-17 | Static Free Wheel, Mining Conveying Equipment Accessories, Mining Instruments And Meters | 5000K CNY | 미지원 |
| Keshun (Guangzhou) Caster Co., Ltd | 1994-03-17 | Static Free Wheel, Light Industrial Handcart Casters, Medium And Heavy-Duty Industrial Handcart Casters | 7250K USD | 미지원 |
| Shanghai Hantang Transmission Equipment Co., Ltd | 2006-01-17 | Static Free Wheel, Industrial Flat Belt, Industrial Belt Customization | 10000K CNY | 미지원 |
| Dongguan Keyi Hardware Rubber Products Co., Ltd | 2011-06-30 | Static Free Wheel, Conveyor Carrying Roller, Mask Machine Roller | 300K CNY | 지원 |
| Zhongyi Intelligent Equipment Co., Ltd | 2020-06-15 | Static Free Wheel, Instrumentation And Meters, Pipe Type | 50000K CNY | 지원 |
| Zhongshan Dajin Caster Products Co., Ltd | 2011-11-24 | Static Free Wheel, Industrial Casters, Lightweight | 100K CNY | 지원 |
| Huakuang Design and Research Institute (Jining) | 2020-04-26 | Static Free Wheel, Large-Scale Equipment, Road Machinery | 1000K CNY | 지원 |
| Shandong Zhongkuang Intelligent Equipment Co., Ltd | 2019-04-22 | Static Free Wheel, Lifting Equipment, Spraying Equipment | 10000K CNY | 지원 |
| Shandong Huazhong Equipment Manufacturing Group Co., Ltd | 2019-12-12 | Static Free Wheel, Fire And Rescue, Construction Machinery | 50000K CNY | 지원 |
| Shandong Jingyun Heavy Industry Co., Ltd | 2020-04-02 | Static Free Wheel, Chemical Products, Coal Mining Equipment | 5000K CNY | 지원 |