Njengoko umkhwa wezindlu zeekhonteyina uqhubeka nokunyuka, kunjalo nesidingo sezisombululo ezisebenzayo zokugquma eziqinisekisa intuthuzelo, ukusebenza kakuhle kwamandla, kunye nozinzo. Ngena i-rock wool, imathiriyeli yenguquko eguqula indlela esicinga ngayo ngokugquma kwizindlu zezikhongozeli. Uboya beRock, ngokunjalo...
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