| Langfang Wanbo Cable Tray Co., Ltd | 2014-03-19 | Explosion Proof Bridge Frame, Cable Tray, Fireproof Tray Bridge | 10000K CNY | 미지원 |
| Wuhan Jiehetong Electrical Equipment Co., Ltd | 2021-08-24 | Explosion Proof Bridge Frame, Spray Painted Ladder Bridge, Polymer Bridge Frame | 2000K CNY | 지원 |
| Wen'an Pengxi Cable Tray Co., Ltd | 2016-03-22 | Explosion Proof Bridge Frame, Hot Dip Galvanized Bridge Frame, Galvanized Cable Tray | 10500K CNY | 지원 |
| Langfang Saixing Metal Products Co., Ltd | 2017-06-02 | Explosion Proof Bridge Frame, Hot Dip Galvanized Bridge Frame, Fire Resistant Bridge Frame | 50000K CNY | 지원 |
| Sichuan Chisheng Electrical Equipment Co., Ltd | 2019-11-25 | Explosion Proof Bridge Frame, Cable Laying, Fiberglass Cable Tray | 10000K CNY | 미지원 |
| Shandong Chengrui Electric Power Equipment Co., Ltd | 2022-11-17 | Explosion Proof Bridge Frame, Color Steel Bridge Frame, Self-Locking Bridge Frame | 15000K CNY | 지원 |
| Chengdu Interstellar Electrical Equipment Co., Ltd | 2013-04-07 | Explosion Proof Bridge Frame, Hot Dip Galvanized Bridge Frame, Hot Dip Galvanized Trapezoidal Bridge Frame | 10000K CNY | 미지원 |
| Shandong Jiayang Electrical Equipment Co., Ltd | 2018-10-23 | Explosion Proof Bridge Frame, Polymer Bridge Frame, Fiberglass Cable Tray | 51880K CNY | 지원 |
| Hebei Jingji Explosion proof Electrical Instrument Co., Ltd | 1993-04-29 | Explosion Proof Bridge Frame, Aluminum Alloy Cable Tray, Frp Cable Tray | 200080K CNY | 미지원 |
| Langfang Gaoxin Metal Products Co., Ltd | 2020-11-12 | Explosion Proof Bridge Frame, Stainless Steel Cable Tray, Ladder-Type Cable Tray | 1000K CNY | 지원 |