隐蔽工程中的水管该用什么材质的？

Hidden in the pipes of the project what materials?

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表面是什么材质的？

What material is the surface?

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是的。您想要什么材质的？我们有丝绸的和棉质的。

Yes. What material are you looking for? We have silk and cotton ones.

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买钱包时，检验一下这个钱包是用什么材质制成的。

When you purchase a wallet, test the fabric used in the manufacturing of the wallet.

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如果不是石材本身材质的问题，那会是什么原因呢？

If it is not the issue of stone material itself, that would be why?

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如果不是石材本身材质的问题，那会是什么原因呢？

If it is not the issue of stone material itself, that would be why?

youdao