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Lebennada dahaarka ee culeyska fudud
Lebenka yar yar ee lebenka ah waxaa ku jira porosity sare, kaas oo badbaadin kara kulayl badan oo sidaas darteed hoos u dhigaya qiimaha shidaalka.
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Hoobiye Refractory Heer Sare
Hoobiyaha refractory waa nooc cusub oo ah walxo xidhid aan organic ahayn, oo ka samaysan budo taaso la mid ah lebenka lagu rakibay, xidhidh aan organic ahayn iyo isku darka.