"on 3-ply corrugated board"-- 请问PLY是什么意思?
在加拿大 you can suggested the grammage based on 3-ply corrugated board. Last time, she advised this is 400g board. 请问PLY是什么意思? [ 本帖最后由 Namiko-zs 于 2008-7-28 15:50 编辑 ] 评论 =polyethylene 聚乙烯 评论 just suggesti...华人论坛