| Shandong Pumei Intelligent Equipment Co., Ltd | 2020-04-20 | Methane Alarm, Road Machinery, Railway Equipment | 3000K CNY | समर्थित |
| Shandong Anrui Mining Equipment Co., Ltd | 2018-02-22 | Methane Alarm, Rolling Wheel, Emulsion Concentration Detector | 10000K CNY | समर्थित नहीं |
| Henan Zhong'an Electronic Detection Technology Co., Ltd | 2012-08-23 | Methane Alarm, Fixed Gas Detection Alarm, Gas Analyzer | 48000K CNY | समर्थित नहीं |
| Zhejiang Yimei Explosion proof Electrical Appliance Co., Ltd | 2018-03-06 | Methane Alarm, Mining Equipment , Reversing Horn | 16080K CNY | समर्थित नहीं |
| Shandong Shenhua Machinery Manufacturing Co., Ltd | 2014-11-11 | Methane Alarm, Drainage Equipment, Motor | 30000K CNY | समर्थित नहीं |
| Hebei Sifu Security Equipment Technology Co., Ltd | 2016-04-29 | Methane Alarm, Positive Pressure Air Respirator, Human Body Static Eliminator | 3000K CNY | समर्थित नहीं |
| Shandong Kuang'an Electromechanical Co., Ltd | 2013-08-12 | Methane Alarm, Arch Breaker, Lifting Equipment | 39780K CNY | समर्थित |
| Qingdao Jundao Environmental Protection Technology Co., Ltd | 2021-08-20 | Methane Alarm, Japan's New Universe, Kore, Germany | 2000K CNY | समर्थित नहीं |
| Shandong Fengtu IoT Technology Co., Ltd | 2017-07-17 | Methane Alarm, Photovoltaic Monitoring Instrument, Emergency Rescue Equipment | 10000K CNY | समर्थित नहीं |
| Shandong Jiucheng Intelligent Technology Co., Ltd | 2024-04-02 | Methane Alarm, Ultrasonic Sensor , Other Testing Instruments | 3000K CNY | समर्थित नहीं |