To introduce unit consume of PVC film in course of normal laminating and in the condition of variety impersonality factor affected, its origin and count method of the wastage were in detail depicted.

介绍PV c膜在正常贴塑生产的过程中，在受各种客观因素影响的条件下，所消耗pvc膜的单位消耗量，较详细地叙述了该消耗量的来源和计算方法。

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