保麗龍是怎樣製成 - 社會議題
By Kelly
at 2005-06-18T00:00
at 2005-06-18T00:00
Table of Contents
保麗龍是怎樣製成?
請各位大大教教我!
請各位大大教教我!
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社會議題
All Comments
By Rachel
at 2005-06-18T01:16
at 2005-06-18T01:16
By Kristin
at 2005-06-20T00:55
at 2005-06-20T00:55
剛提鍊出來的是一顆顆小小的粒子
粒徑於 0.4~1.6mm
需要經過發泡過程才可以使用
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