... with good quality 4.Professional service 1,Classification:Magnesium carbonate 2,Appearance:white monocline crystallizes or the amorphous powder ... , Serves as the medicine intermediate, the absorbent, the drying agent, the color fixative, the carrier, the anti-knot quick ... fine chemical industryproducing the chemical reagent;3,Makes the strengthening agent, the auxiliaries in the rubber;4, May make the ...