樓房用(yòng)什(shén)麽材質的水(shuǐ)管比較好(hǎo)?保質年限多少年?
2019-12-21
下(xià)水(shuǐ)道(dào)有多大(dà)?爲什(shén)麽農(nóng)場樓房的下(xià)水(shuǐ)道(dào)經常堵塞,而且下(xià)水(shuǐ)道(dào)的大(dà)小(xiǎo)也(yě)不一樣?爲什(shén)麽?建築工(gōng)人說他(tā)們是按照圖紙(zhǐ)施工(gōng)的。可爲什(shén)麽排污口比排污口高(gāo)?是用(yòng)來(lái)換管子預留的嗎?...
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