High Whiteness Negative Ion Powder Preparation Technology
Tourmaline is a silicate mineral with a complex ring structure made of sodium, magnesium, iron, aluminum, and lithium, and is characterized by boron. It has good thermoelectric and piezoelectric effects. It also releases negative ions, radiates far infrared rays, and possesses antibacterial and deodorizing functions. These properties are beneficial to both humans and the environment. […]