Ukuze ukhiqize isikhunta esinezindonga ezincane kahle, uketshezi lwezinto zokubumba umjovo ezinezindonga ezincane kufanele kube kuhle, futhi kube nesilinganiso esikhulu sokugeleza kuya kobude.Iphinde ibe namandla omthelela omkhulu, izinga lokushisa eliphezulu lokuhlanekezelwa kokushisa, nokuzinza okuhle kohlangothi.Ngaphezu kwalokho, ukumelana nokushisa, i-flame retardan ...
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