| 详细介绍：
金属瓦因为其瓦型多样、颜色丰富、价格适中等多种优点被人们广泛使用，但是对于第一次购买的人来说，产品是好是坏不知如何分辨，下面就为大家介绍一下购买时应注意哪些方面。
`Now, Mr Pip,' pursued the lawyer, `I address the rest of what I have to say, to you. You are to understand, first, that it is the request of the person from whom I take my instructions, that you always bear the name of Pip. You will have no objection, I dare say, to your great expectations being encumbered with that easy condition. But if you have any objection, this is the time to mention it.'
My heart was beating so fast, and there was such a singing in my ears, that I could scarcely stammer I had no objection.
`I should think not! Now you are to understand, secondly, Mr Pip, that the name of the person who is your liberal benefactor remains a
在购买时应注意表面彩砂是否严重掉落，金属瓦表面为颗粒状彩砂运输中部分落砂属于正常现象，但是瓦片过多漏出底色这属于质量问题。
金属瓦产品可直接在屋面施工，这是因为瓦片本身具有简易施工的特点，特制钢钉起固定作用，加强抗风揭性能等。
金属瓦厚度为0.4mm，长宽1340*420mm，该规格为国家标准规定，当然客户有权利根据建筑本身要求对产品厚度增加或减少。
其他物理性能可参考供应方提供的检测报告进行对比。profound secret, until the person chooses to reveal it. I am empowered to mention that it is the intention of the person to reveal it at first hand by word of mouth to yourself. When or where that intention may be carried out, I cannot say; no one can say. It may be years hence. Now, you are distinctly to understand that you are most positively prohibited from making any inquiry on this head, or any allusion or reference, however distant, to any individual whomsoever as the individual, in all the communications you may have with me. If you have a suspicion in your own breast, keep that suspicion in your own breast. It is not the least to the purpose what the reasons of this prohibition are; they may be the strongest and gravest reasons, or they may be mere whim. This is not for you to inquire into. The condition is laid down. Your
以上几点在购买产品时可作为参考，希望对您能有所帮助！金属瓦本身就是为我们服务的产品，不应该让它变成别人牟取暴利的手段，只有被人们所认可才能有更好的发展空间。
质量：质量一般是金属瓦价格的决定性因素，然而决定产品质量好坏也要从原材料出发，龙源四方彩石金属瓦采用好的镀铝锌钢板为基材，相比于普通的金属瓦价格自然要贵一些。镀铝锌钢板彩石金属瓦使用寿命更长一些。
瓦型、颜色：不同的瓦型颜色，因生产工艺的差异，在成本方面也有所不同，因此，价格会有高低之分。acceptance of it, and your observance of it as binding, is the only remaining condition that I am charged with, by the person from whom I take my instructions, and for whom I am not otherwise responsible. That person is the person from whom you derive your expectations, and the secret is solely held by that person and by me. Again, not a very difficult condition with which to encumber such a rise in fortune; but if you have any objection to it, this is the time to mention it. Speak out.'
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