仿不锈钢装饰腰线的基材是由PVC发泡而成，表面采用热烫印膜。
The imitated stainless steel decorative listel is made of foamed PVC, and hot pressed filmed surface.
本实用新型的复合膜可以直接热贴合在橡塑发泡材料上，使得生产成本低，而且生产效率高。
The composite membrane can be directly and thermally laminated onto the plastic and rubber foaming materials, so that the production cost is low and the production efficiency is high.
生物膜容易脱落是影响发泡塑料悬浮填料脱氮性能及稳定性的一个主要原因。
However, the main reason resulting in the poor denitrification capacity of the foamed plastic suspended medium is that the bio film becomes detached easily.
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