After heating twice-the first carbonization and the second activation, the product is made of coal activated carbon from anthracite. After deep processing, the product has the characteristics of large specific surface area, developed pores, high strength, strong adsorption capacity, low ash content and low moisture. This product is widely used in various waste gas treatment, drinking water treatment, waste water treatment as an absorbent material, such as most industrial waste gas, gas produced in spray booths, can create a comfortable and clean environment, activated carbon is more protective of human health, activated carbon is not The air filter that arrives, activated carbon combines the function of physical adsorption and chemical decomposition to decompose harmful gases such as formaldehyde, ammonia, benzene, oil fume and various peculiar smells in the air, carcinogenic aromatic substances, other alkaline gases or Acid gas and various sewage plants, drinking water, industrial water, tap water, purified water, beverage, food, medical water, etc.