It enjoys a good reputation at home and abroad, and is an ideal raw material for water purification filter media. It has the characteristics of low ash, low sulfur, low phosphorus, high calorific value, low resistivity, low lump coal rate, low chemical activity, low coal head recovery rate, low mechanical strength, etc. It is also non-toxic and insoluble in acidic, neutral and alkaline water.

Our filter media is made of "Taisi" anthracite coal through washing, selection, smashing and repeated screening procedures. It has good glossiness, mechanical strength, compressibility, abrasion resistance and stable chemical activity. It also has certain separating and absorbing activity, which can absorb and treat the color, odor, taste and tiny organisms in water, and is suitable for filtering domestic water, industrial water and municipal sewage. It is a good material for environmental protection.