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    常见问题 位置:首页 > > 常见问题
    优等品就没有缺陷吗?
    发表时间:2016-12-23     阅读次数:     字体:【

    由于陶瓷制品是各种原料经过高温烧成的产品,杂质、变形等缺陷不可能完全避免,国家标准也允许一定程度的缺陷存在。如表面质量优等品规定至少有95%的砖距0.8m远处垂直观察表面无缺陷。

     
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