煅烧滑石镁25-30%,钙8%,硅55%,白度75~85。滑石原矿镁22%,钙9%,铁0.5%,硅53%,白度70
镁24.14%,烧失5%,1200℃烧白72.7,收缩3.2%,价格优惠,随时可供货,有证矿山