Ammonia (NH3) is a gas present in the entire atmosphere in relatively small concentrations (1–5 ppb) and is mainly emitted by human activities. Ammonia causes negative effects to living beings. Therefore, it has been suggested 25 ppm as an allowed exposure level of ammonia concentration. Thus, it is important to find a sensing material for ammonia sensing at room temperature.

As industrial teeth, tungsten is an important raw material in machining and manufacturing. Tungsten-based cemented carbide tools have a series of excellent properties, such as high strength, good toughness, high temperature resistance, wear resistance and corrosion resistance. Even at 500 degrees Celsius or even 1000 degrees Celsius, the hardness basically keeps a high level. Tungsten Cemented Carbide Cutting Blade, which promotes the rapid development of high-speed and high-efficiency cutting technology.

Tungsten Trioxide (WO₃) is a kind of relatively stable tungsten oxide. Because of its electrochromic, photochromic, gas-chromic and other special properties, WO₃ smart glass is a product that meets the needs of modernization. How to apply Tungsten Trioxide to smart glass?

Tungsten Alloy Extrusion Die is a technology for forming parts by extrusion die in the process of high-strength extrusion.