| Hebei Qiqiang Composite Materials Co., Ltd | 2023-03-13 | Cable Trunking Bridge, Fiberglass Drainage Ditch, Fiberglass Marker Post | 3000K CNY | 지원 |
| Hebei Xinda Technology Co., Ltd | 2020-07-06 | Cable Trunking Bridge, Frp Fan, Fiberglass Cable Tray | 10000K CNY | 미지원 |
| Langfang Wanbo Cable Tray Co., Ltd | 2014-03-19 | Cable Trunking Bridge, Cable Tray, Fireproof Tray Bridge | 10000K CNY | 미지원 |
| Shandong Chengrui Electric Power Equipment Co., Ltd | 2022-11-17 | Cable Trunking Bridge, Color Steel Bridge Frame, Self-Locking Bridge Frame | 15000K CNY | 지원 |
| Hebei Huanrun Fluid Environmental Protection Equipment Co., Ltd | 2025-04-29 | Cable Trunking Bridge, Profile, Fiberglass Grating | 3000K CNY | 미지원 |
| Hebei Jingji Explosion proof Electrical Instrument Co., Ltd | 1993-04-29 | Cable Trunking Bridge, Aluminum Alloy Cable Tray, Frp Cable Tray | 200080K CNY | 미지원 |
| Renyun (Hunan) Busbar Co., Ltd | 2021-06-25 | Cable Trunking Bridge, Waterproof Enclosed Bus Duct, Enclosed Bus Duct | 50000K CNY | 미지원 |
| Sichuan Mandexi Electrical Equipment Co., Ltd | 2016-03-15 | Cable Trunking Bridge, Insulated Bus Duct, Aluminum Alloy Air Type Trunking | 2000K CNY | 지원 |
| Langfang Gaoxin Metal Products Co., Ltd | 2020-11-12 | Cable Trunking Bridge, Stainless Steel Cable Tray, Ladder-Type Cable Tray | 1000K CNY | 지원 |
| Shandong Alto Sen Electrical Equipment Co., Ltd | 2021-12-14 | Cable Trunking Bridge, Hot Dip Galvanized Bridge Frame, Polymer Bridge Frame | 3000K CNY | 지원 |