Specification :
The Heavy tar calcium carbonate is selects the high quality pure white calcite is a raw material, undergoes the selection, the laundering, the air seasoning, thickly broken, broken, working procedure processings and so on attrition, micro graduation to become, each working procedure, defers to the strict working instruction and the examination standard carries on the production, final product after examination qualified, only then permits packing leaving the plant. The product has the albedo to be high, the pellet distribution is even, grain-size distribution narrow and so on characteristics. Widely applies in the plastic, the rubber, the glass, the building materials, the chemical industry, the feed, the coating, the papermaking, food, the medicine, industries and so on electric power insulation, asphalt, linoleum.