As these films use less material they are cheaper to produce, not least because they can be deposited on bases like metal, glass and plastic.

因为这些薄膜使用较少的原料，从而使得它们的生产成本更低。同样重要的是，它们可以被装配在诸如金属、玻璃和塑料等基底之上。

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In this region, known as the plastic region, plastic deformation takes place and when the load is removed, the material will not return to its original dimensions.

在这个区域，称为塑性变形区域，当载荷消除之后会产生塑性变形，材料无法恢复原来尺寸。

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By make experiment of plunger case surface abrasion hardness, in the last, adopt high strength engineering plastic to act as anti-abrasive material, make the success, get great result.

通过对柱塞的表面耐磨层进行各种试验，最后采用了高强度工程塑料进行压注试验，取得了成功，效果显著。

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With glass as well as plastic in mind you might want to look into another raw material, soda ash.

FORBES: Magazine Article

The only plastic objects that can not now be recycled are heavily contaminated items, such as paint pots and plastic products, such as carrier bags, coal sacks, and clear material used to seal food containers.

BBC: Guernsey States introduces more plastic recycling

As a result, it is necessary to collect only a single type of plastic to ensure the desired material properties.

ENGADGET: Fujitsu making laptops from unwanted CDs and DVDs