| Langfang Wanbo Cable Tray Co., Ltd | 2014-03-19 | Cable Tray Bracket, Fireproof Spray Bridge, Cable Tray | 10000K CNY | Not Supported |
| Cangzhou Changbo Metal Products Co., Ltd | 2017-08-02 | Cable Tray Bracket, Pipe Support Hanger, Cable Support Hanger | 51000K CNY | Supported |
| Shandong Alto Sen Electrical Equipment Co., Ltd | 2021-12-14 | Cable Tray Bracket, Hot Dip Galvanized Bridge Frame, Galvanized Cable Tray | 3000K CNY | Supported |
| Hebei Tengtai Pipeline Manufacturing Co., Ltd | 2011-06-03 | Cable Tray Bracket, Carbon Steel Tee, Bearing Plug-In | 50000K CNY | Supported |
| Zhejiang Huashi Door Industry Co., Ltd | 2020-06-01 | Cable Tray Bracket, Rapid Door, Crystal Gate | 15000K CNY | Not Supported |
| Hebei Yushang New Materials Co., Ltd | 2024-08-15 | Cable Tray Bracket, Fiberglass Grating, Fiberglass Bracket | 6000K CNY | Supported |
| Chengdu Interstellar Electrical Equipment Co., Ltd | 2013-04-07 | Cable Tray Bracket, Tray Bridge, White Bridge Frame | 10000K CNY | Not Supported |
| Shandong Daoyuan Electrical Equipment Co., Ltd | 2018-11-09 | Cable Tray Bracket, Arm Support, L-Shaped Bracket | 12000K CNY | Supported |
| Wuhan Jiehetong Electrical Equipment Co., Ltd | 2021-08-24 | Cable Tray Bracket, Cable Trunking Bridge, Galvanized Ladder Bridge | 2000K CNY | Supported |
| Shandong Pengda Changye Electrical Equipment Co., Ltd | 2020-05-19 | Cable Tray Bracket, Stainless Steel Cable Tray, Hot Dip Galvanized Bridge Frame | 5000K CNY | Supported |