How To Make A Homemade Heater

The war is often in the desert where there is plenty of sunshine, but usually there is no power supply. The transportation of energy is both dangerous and inconvenient. How to solve this problem,...

The U.S. military has recently developed a new type of solar tent. The top of the tent is covered with a thin film of amorphous silicon instead of the common hard solar panels and can be folded...

How much is the engineering tent? It is simple and quick to set up and disassemble. It can be inflated in 3-10 minutes. It can be installed or disassembled in a short time to save your precious time....

Now the use of cabinet air conditioners has become very common, especially in some processing sites or mechanical processing plants, its usage rate is very high, mainly due to people paying attention...