GB/T 452.2-2002.Paper and board identification of wire side and felt side. 1范围 GB/T 452.2规定了纸和纸板正反面的...
GB/T 452. 2一1989 纸和纸板正反面的测定法
GB/T 452. 2一1989.Paper and board- Wire side and felt side. 1主题内容与适用范围 GB/T 452. 2规定了纸和纸板正.反面的测定方法。 G...