| Shandong Alto Electrical Equipment Co., Ltd | 2018-02-01 | Hot Dip Galvanized Cable Tray, Color Steel Bridge Frame, Frp Cable Tray | 29000K CNY | Supported |
| Langfang Wanbo Cable Tray Co., Ltd | 2014-03-19 | Hot Dip Galvanized Cable Tray, Cable Tray, Fireproof Tray Bridge | 10000K CNY | Not Supported |
| Shandong Huahe Cable Tray Co., Ltd | 2022-10-24 | Hot Dip Galvanized Cable Tray, Stainless Steel Cable Tray, Fire Resistant Spray Painted Bridge Frame | 5000K CNY | Not Supported |
| Yanggu Huatong Automation Equipment Co., Ltd | 2012-06-15 | Hot Dip Galvanized Cable Tray, Plc Cabinet, Galvanized Cable Tray | 100000K CNY | Supported |
| Shandong Chengrui Electric Power Equipment Co., Ltd | 2022-11-17 | Hot Dip Galvanized Cable Tray, Color Steel Bridge Frame, Self-Locking Bridge Frame | 15000K CNY | Supported |
| Shandong Hongfeng Power Technology Co., Ltd | 2023-09-28 | Hot Dip Galvanized Cable Tray, Customized Metal Bridge Frame, Large Span Bridge Frame | 9000K CNY | Not Supported |
| Shandong Yueshang Electrical Equipment Co., Ltd | 2019-05-09 | Hot Dip Galvanized Cable Tray, Protect Cables, Cable Bracket | 30000K CNY | Not Supported |
| Shandong Rongfa Electrical Equipment Co., Ltd | 2018-06-26 | Hot Dip Galvanized Cable Tray, Stainless Steel Cable Tray, Hot Dip Galvanized Cable Tray | 20180K CNY | Supported |
| Shandong Pengda Changye Electrical Equipment Co., Ltd | 2020-05-19 | Hot Dip Galvanized Cable Tray, Stainless Steel Cable Tray, Aluminum Alloy | 5000K CNY | Supported |
| Shandong Jinhao Transportation Facilities Co., Ltd | 2018-03-20 | Hot Dip Galvanized Cable Tray, Traffic Monitoring Pole, Traffic Signal Pole | 3000K CNY | Not Supported |