Pamene kukula ndi zovuta za ntchito zomanga zikuchulukirachulukira padziko lonse lapansi, kufunika kwa zipangizo zodalirika kwawonjezekanso. Posachedwapa,ASTM H BeamIkukhala chisankho chodziwika bwino cha nyumba zamakono zachitsulo chifukwa cha mawonekedwe ake abwino a makina, kapangidwe kosavuta komanso kugwiritsidwa ntchito m'malo osiyanasiyana.
Nthawi yotumizira: Januwale-04-2026