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Normal kraft paper is strong and relatively coarse. It has high tensile strength. The grammage is normally 40�C135 g/m2.

Bruce 发表于 2024-12-1 09:16:45 [显示全部楼层] 回帖奖励 阅读模式 关闭右栏 0 19
Normal kraft paper is strong and relatively coarse. It has high tensile strength. The grammage is normally 40�C135 g/m2.
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