Ukugquma okugqwesileyo okuvakalayo kufuneka kube neenzuzo zomgangatho ophezulu wokugquma, ukumelana nomoya, ubungqina bemvula kunye nekhephu, ukunqanda ilangatye, ubungqina bothuli, ubungqina bokufuma, ukuxhathisa kweasidi kunye nealkali, ubomi benkonzo ende njalo njalo.I-thermal insulation ivakala isetyenziswa kakhulu ebomini, kwaye ukhuphiswano lunzima.Ngoko...
Funda ngokugqithisileyo