| Hebei Zhongchun HVAC Equipment Co., Ltd | 2016-01-20 | Engineering Radiator, Explosion Proof Heater, Steel Plate Radiator | 11000K CNY | Not Supported |
| Yikang Xujia Heating Equipment Factory, Jizhou District | 2016-02-25 | Engineering Radiator, Finned Box Heat Exchanger, Finned Tube | - | Supported |
| Frankel HVAC Technology Co., Ltd., Ninghe District, Tianjin City | 2022-04-22 | Engineering Radiator, Steel Two Column Radiator, Steel Bathroom Back Basket | 5800K CNY | Supported |
| Tianjin Weniluo Thermal Energy Technology Co., Ltd | 2014-08-21 | Engineering Radiator, Steel Radiator, Copper Aluminum Composite Radiator | 29000K CNY | Not Supported |
| Hebei Sherlock HVAC Equipment Co., Ltd | 2019-08-29 | Engineering Radiator, Copper Aluminum Composite Radiator, Die Cast Aluminum Radiator | 10080K CNY | Not Supported |
| Hebei Zhizhuo HVAC Equipment Co., Ltd | 2021-08-06 | Engineering Radiator, Laser Welded Finned Tube, Radiator | 3000K CNY | Supported |
| Hebei Huichun Heating Equipment Co., Ltd | 2011-09-15 | Engineering Radiator, Electric Heater, Cast Iron Radiator | 11800K CNY | Not Supported |
| Hebei Xianghong Heating Equipment Co., Ltd | 2008-08-21 | Engineering Radiator, Copper Aluminum Composite Radiator, Steel Two Column Radiator | 26000K CNY | Not Supported |
| Hebei Chaochun New Energy Technology Co., Ltd | 2023-03-31 | Engineering Radiator, Flue Gas Heat Exchanger, Thermal Storage Electric Heater | 66000K CNY | Not Supported |
| Hengshui Huahe Radiators Co., Ltd | 2019-05-24 | Engineering Radiator, Copper Aluminum Composite Radiator, Fin Heat Dissipation Tube | 300K CNY | Not Supported |