| Shandong Zhongtan Intelligent Equipment Co., Ltd | 2022-03-01 | Closed Cable Tray, Steel Products, Explosion-Proof Electrical Equipment | 10000K CNY | مدعوم |
| Shandong Alto Electrical Equipment Co., Ltd | 2018-02-01 | Closed Cable Tray, Polymer Cable Tray, Double Ladder Edge Large-Span Bridge | 29000K CNY | مدعوم |
| Langfang Wanbo Cable Tray Co., Ltd | 2014-03-19 | Closed Cable Tray, Fireproof Spray Bridge, Cable Tray | 10000K CNY | غير مدعوم |
| Yanggu Huatong Automation Equipment Co., Ltd | 2012-06-15 | Closed Cable Tray, Cable Tray, Distribution Cabinet | 100000K CNY | مدعوم |
| Shandong Jiayuan Electrical Equipment Co., Ltd | 2016-06-07 | Closed Cable Tray, Cable Tray, Trapezoidal Welded Steel | 36000K CNY | غير مدعوم |
| Shandong Jiayang Electrical Equipment Co., Ltd | 2018-10-23 | Closed Cable Tray, Fiberglass Cable Tray, Energy Saving Molded Bridge Frame | 51880K CNY | مدعوم |
| Shandong Alto Sen Electrical Equipment Co., Ltd | 2021-12-14 | Closed Cable Tray, Hot Dip Galvanized Bridge Frame, Galvanized Cable Tray | 3000K CNY | مدعوم |
| Shandong Xinming Electrical Equipment Co., Ltd | 2018-12-24 | Closed Cable Tray, National Standard Hot-Dip Galvanized Bridge Frame, Cable Tray | 21000K CNY | مدعوم |
| Shandong Chengrui Electric Power Equipment Co., Ltd | 2022-11-17 | Closed Cable Tray, Galvanized Hot-Dip Galvanized Bridge Frame, Stainless Steel Cable Tray | 15000K CNY | مدعوم |
| Shandong Pengda Changye Electrical Equipment Co., Ltd | 2020-05-19 | Closed Cable Tray, Stainless Steel Cable Tray, Hot Dip Galvanized Bridge Frame | 5000K CNY | مدعوم |