sand hardness meaning in English

砂型硬度
型砂硬度

A dalu - invested enterprise , the aomeijia company mainly deals in the coating materials of plastic product category , internal and external wall coating materials , industrial floor coating materials as well as emery sand hardness resistant , wear resistant floors and other projects
苏州澳美佳装饰工程有限公司是一家大陆实力企业,主要经营内、外墙涂料，工业地坪涂料及金刚砂耐硬化耐磨地坪等工程。