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怎样检验PVC材料质量好坏
发布者:admin 发布时间:2013-06-14 10:50:00 阅读:237次 【字体:

pvc好坏主要根据起配比来区分;看断面才质细腻柔韧度好,在有就是颜色比较明亮透明.
 
 

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