The principal USES of PVC in North America, in order of importance, are pipes, construction materials, consumer goods, packaging, and electrical products (such as wire and cable insulation).
在北美，PVC的主要用途按重要性排列为管道、建筑材料、消费产品、包装纸和电器产品(比如电线和电缆绝缘)。
Quality in many products depends on their degree of flexibility or stiffness. Packaging, playing cards, boxboard fabrics, containers, wire, tubing, many plastic and metal parts are examples.
许多产品的质量取决于其柔韧度或硬度，如，包装、纸牌、硬纸板织物、金属丝、管、塑料和金属部件。
This paper simply described the process inspection of automation Al wire ultrasonic wedge bonding in ceramic packaging IC.
本文简要描述了陶瓷外壳封装集成电路自动铝丝楔焊键合的工序检查。
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