I see. I was talking about 进水管道 all this time.

You and I are at completely different levels.  You can wait for a problem to happen and then solve it.  I don't have much basic knowledge to solve a problem when it comes.  I have to learn some basic things first.

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你问的:What about the drain pipe in picture 2? Where should I disl -房崇- 给 房崇 发送悄悄话 房崇 的博客首页 (0 bytes) () 02/04/2016 postreply 11:27:20

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