Tepi yopanda madzi ya Butyl ndi tepi yosadzipaka yokha yosadzipaka yokha, yosadzipaka yokha, yopangidwa ndi mphira wa butyl monga zopangira zazikulu, pamodzi ndi zowonjezera zina, kudzera muukadaulo wapamwamba.Ili ndi zomatira mwamphamvu pamwamba pazida zosiyanasiyana, ndipo ili ndi zabwino kwambiri ...
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