| Langfang Wanbo Cable Tray Co., Ltd | 2014-03-19 | Slot Box, Fireproof Spray Bridge, Cable Tray | 10000K CNY | Không hỗ trợ |
| Hebei Yicheng Composite Materials Co., Ltd | 2023-11-08 | Slot Box, Fiberglass Grating, Fiberglass Cable Tray | 3000K CNY | Không hỗ trợ |
| Shandong Alto Electrical Equipment Co., Ltd | 2018-02-01 | Slot Box, Polymer Cable Tray, Double Ladder Edge Large-Span Bridge | 29000K CNY | Hỗ trợ |
| Guangdong Lianbiao Cable Tray Industrial Co., Ltd | 2015-09-08 | Slot Box, Fiberglass Cable Tray, Galvanized Conduit | 11680K CNY | Không hỗ trợ |
| Hebei Jingji Explosion proof Electrical Instrument Co., Ltd | 1993-04-29 | Slot Box, All Kinds, Frp Cable Tray | 200080K CNY | Không hỗ trợ |
| Chengdu Interstellar Electrical Equipment Co., Ltd | 2013-04-07 | Slot Box, Tray Bridge, White Bridge Frame | 10000K CNY | Không hỗ trợ |
| Zaoqiang Haoyang Machinery Manufacturing Co., Ltd | 2020-01-07 | Slot Box, Fiberglass Ladder Bridge, Fiberglass Bracket | 1000K CNY | Hỗ trợ |
| Shandong Weiteli Electric Co., Ltd | 2019-10-12 | Slot Box, Hot Dip Galvanized Cable Tray, Stainless Steel Cable Tray | 101600K CNY | Hỗ trợ |
| Shandong Honghe Cable Tray Co., Ltd | 2023-05-09 | Slot Box, Fireproof Cable Tray, Stainless Steel Cable Tray | 10000K CNY | Không hỗ trợ |
| Jiangsu Li'ao New Materials Technology Co., Ltd | 2019-07-17 | Slot Box, Sheet Metal Cabinet, C-Shaped Steel Hardware | 20000K CNY | Hỗ trợ |