| Shandong Zhongtan Intelligent Equipment Co., Ltd | 2022-03-01 | Wellhead Heating Device, Steel Products, Explosion-Proof Electrical Equipment | 10000K CNY | Compatible |
| Shandong Huayu Heavy Industry Machinery Co., Ltd | 2020-12-17 | Wellhead Heating Device, Mining Conveying Equipment Accessories, Mining Instruments And Meters | 5000K CNY | No compatible |
| Jiangsu Zhongren Machinery Equipment Co., Ltd | 2015-09-09 | Wellhead Heating Device, Pipeline Heater, Heat Transfer Oil Furnace | 20000K CNY | No compatible |
| Jiangsu Ruiyuan Heating Equipment Technology Co., Ltd | 2008-08-08 | Wellhead Heating Device, Air Heater, Vacuum Cleaning Furnace | 50000K CNY | No compatible |
| Shenyang Lincheng Electric Technology Co., Ltd | 2017-01-18 | Wellhead Heating Device, High Frequency Electromagnetic Induction Heating Equipment, Electromagnetic Melting Aluminum Furnace | 20000K CNY | No compatible |
| Shandong Zhongzhong Intelligent Technology Co., Ltd | 2022-03-10 | Wellhead Heating Device, Instrumentation And Meters, Chemical Industry | 10000K CNY | No compatible |
| Shandong Huakuang High tech Development Co., Ltd | 2024-02-29 | Wellhead Heating Device, Lifting Equipment, Road Machinery | 3000K CNY | Compatible |
| Jiangsu Hebang Machinery Equipment Co., Ltd | 2017-04-01 | Wellhead Heating Device, Tunnel Oven, Pipeline Heater | 18000K CNY | No compatible |
| Jiangsu Anhongzhi Ruiye Technology Co., Ltd | 2018-09-26 | Wellhead Heating Device, Heating Tube, Pipeline Heater | 28000K CNY | No compatible |
| Jiangsu Yanyan Machinery Equipment Co., Ltd | 2020-06-09 | Wellhead Heating Device, Thermal Oil Heater, Pipeline Heater | 10000K CNY | No compatible |