| Langfang Wanbo Cable Tray Co., Ltd | 2014-03-19 | Cable Trough, Cable Tray, Fireproof Tray Bridge | 10000K CNY | Não compatível |
| Hebei Xinda Technology Co., Ltd | 2020-07-06 | Cable Trough, Frp Fan, Fiberglass Cable Tray | 10000K CNY | Não compatível |
| Shandong Weiteli Electric Co., Ltd | 2019-10-12 | Cable Trough, Aluminum Alloy Cable Tray, Stainless Steel Cable Tray | 101600K CNY | Compatível |
| Hebei Yicheng Composite Materials Co., Ltd | 2023-11-08 | Cable Trough, Fiberglass Grating, Fiberglass Cable Tray | 3000K CNY | Não compatível |
| Hebei Qiqiang Composite Materials Co., Ltd | 2023-03-13 | Cable Trough, Fiberglass Drainage Ditch, Fiberglass Marker Post | 3000K CNY | Compatível |
| Shandong Chengrui Electric Power Equipment Co., Ltd | 2022-11-17 | Cable Trough, Color Steel Bridge Frame, Self-Locking Bridge Frame | 15000K CNY | Compatível |
| Shandong Pengda Changye Electrical Equipment Co., Ltd | 2020-05-19 | Cable Trough, Stainless Steel Cable Tray, Aluminum Alloy | 5000K CNY | Compatível |
| Zaoqiang Haoyang Machinery Manufacturing Co., Ltd | 2020-01-07 | Cable Trough, Fiberglass Ladder Bridge, Zinc Aluminum Magnesium Maintenance Channel Board | 1000K CNY | Compatível |
| Shandong Alto Sen Electrical Equipment Co., Ltd | 2021-12-14 | Cable Trough, Hot Dip Galvanized Bridge Frame, Polymer Bridge Frame | 3000K CNY | Compatível |
| Hebei Huanrun Fluid Environmental Protection Equipment Co., Ltd | 2025-04-29 | Cable Trough, Profile, Fiberglass Grating | 3000K CNY | Não compatível |