mass per square metre meaning in Chinese

每平方米的质量

Paper and board - masses per square metre grammage
纸张和纸板.每平方米克重
Paper and board tests . corrugated board . determination of mass per square metre grammage
纸张和纸板试验.瓦楞纸板.每平方米重量
Coated papers reactive to water . determination of the mass per square metre grammage of the coating and the anhydrous coating
防水涂层纸.每平方米涂料和每平方米