① Ihe eji egbochi mmiri mee ga-enwerịrị asambodo ụlọ ọrụ mmepụta ihe yana asambodo ihe mmiri na-enweghị mmiri nke ngalaba ahụ dị mkpa nyere.Ọ bụrụ na ihe ahụ abanye na saịtị ahụ, a ga-enyocha ya ma tughachi ya dịka usoro ndị a siri dị. a ga-eji ya mee nyocha ọzọ. <br>SBS gbanwetụrụ bitumen waterproofing akpụkpọ ahụ, arụmọrụ na ọdịdị nke akpụkpọ ahụ kwesịrị izute chọrọ.
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