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彩鋼卷质量的判定1：观察基板厚度和覆膜的厚度彩鋼卷是由基板和彩色的腹膜或者镀层构成的。我们首先得考虑基板和腹膜镀层的厚度，比较好的彩鋼卷基板是0.02~0.05，覆膜或者涂层厚度往往只有0.15以下。因为从影响彩鋼卷的使用时间来看，基板的厚度是很重要的。而有些生产彩鋼卷的厂家往往在基板及彩鋼卷涂层或覆膜

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　彩鋼卷质量的判定

　　1：觀察基板厚度和覆膜的厚度

　　彩鋼卷是由基板和彩色的腹膜或者镀层构成的。我们首先得考虑基板和腹膜镀层的厚度，比较好的彩鋼卷基板是0.02~0.05，覆膜或者涂层厚度往往只有0.15以下。因为从影响彩鋼卷的使用时间来看，基板的厚度是很重要的。而有些生产彩鋼卷的厂家往往在基板及彩鋼卷涂层或覆膜上做手脚，他们降低基板的厚度，但是增加腹膜的厚度来降低彩鋼卷的生产成本，这就降低了彩鋼卷的使用寿命了。

　　2：观察彩鋼卷的外漏边缘

　　拿到一块彩鋼卷，我先观察彩鋼卷外露钢材如断面等是否结晶细密，是否发灰、发暗和杂质。若切面是结晶细密型的则是质量比较优越的。

　　3：聽聲音

　　用手指或用硬物敲击彩鋼卷，彩鋼卷的材质如果较差，则发出来的声音是闷的，金属声音不明显，材质较好的彩鋼卷金属声音是比较响亮、清脆的。

　　4：查看彩鋼卷的质量合格

　　是否有相关部门的检验标准。如果有可能的话尽量去彩鋼卷的生产厂家实地考察。看看企业的环境怎么样，是否正规。市场上打听一下这个企业的口碑怎么样。

　　5:看價格

　　任何东西，都是一分钱一分货。我们在比较彩鋼卷质量的时候，价格是一方面，但是也不要太注重价格。如果一种彩鋼卷的价格别其他的低很多，那么我们就要有所注意了。

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It had only the smallest of windows, so placed as to allow daylight without any sight of the outside; the windows were plastic-sheeted slits high up on the metal walls, no more. The room was, at best, dim, during the day, but that hardly mattered: during the day the room was empty. Only at night, when the soft artificial lights went on, shedding the glow from their wall-shielded tubes, was the room fit for normal vision. There were no decorations, of course, and no chairs: the Alberts had no use for chairs, and decorations were a refinement no master had yet bothered to think of. The Alberts were hardly taught to appreciate such things in any case: that was not what they had come to learn: it was not useful. TO: Williston Reed But Realf of Grandturzel shook his head. His humiliation was more than he could bear. Without another look at Pete or Tilly, or at Reuben holding the raw chop to his eye, he turned and walked out of the room with bent head and dragging footsteps. 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