Nano-sized ultra-fine calcium carbonate has the characBearing teristics of ultra-fine and ultra-pure. The crystal shape and particle size are effectively contInstruments & Meters rolled in the production process, and the surface is modified. Therefore, it has a threeOther Bags & Cases -dimensional structure in rubber, and has good dispersion, which can impLED Module rove the reinforcing effect of materials. For example, in the rubber mixing, the chain-like chains are broken and a large number of high active surfaces or high active points are formed. They form bonds with the long chain of rubber, which not only have good dispersion, but also greatly enhance the reinforcement effect. It is noteworthy that it can not only be used as a reinforcing filler alone, but also can be used in combination with other fillers according to production requirements, such as carbon black, silica, light calcium and heavy calcium, titanium dioxide, clay, etc., to reinforce, fill, tone, improve processing technology and improve product performance, reduce glue content or part. The purpose is to replacPhysical Measuring Meter e expensive white filler such as white carbon black and titanium dioxide.