Grammage and Price Calculation of the PET Sheets

PET片材的克重和价格计算 PET sheets/films are widely used in the custom paper boxes to constitute the clear window, also referred to the clear window paper box. In this article, we will talk about how to calculate the grammage and price of the PET sheets. The density of PET is constant,  1.38 g/cm3 (20 °C). For a piece of […]

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