The Mining Cap Lamp was invented by David and is also called David Lamp. David first went to the min...
If people have been exposed to high levels of carbon monoxide, they are prone to poisoning and suffo...
Due to the small size of the carbon monoxide gas alarm, the internal microprocessor sensor is a high...
1. LED has a very long service life, which can generally reach more than 50000~100000 hours, 5~10 ti...
Look at the bulb 1. Look at the head count. The head count should be moderate. Generally, the number...
Europe’s scramble to find new sources of energy to reduce its reliance on Russia has given Sasol, So...
The GDP in the first quarter increased by 18.3% year on year, which was affected by the incomparable...
The system is put into use, and the intelligent, digital, and supermarket management mode of one per...
The "intelligent" miner's lamp management system is mainly composed of an intelligent charging syste...
Convert the chemical energy from the reaction of hydrogen and oxygen directly into electrical energy...