◉ Kodi makwerero a chingwe ndi chiyani? Makwerero a chingwe ndi dongosolo lokhazikika lopangidwa ndi zigawo zowongoka, zopindika, zida, komanso zida zothandizira (mabulaketi amkono), ma hanger, ndi zina zambiri zama tray kapena makwerero omwe amathandizira mwamphamvu zingwe. ◉ Zifukwa kusankha makwerero chingwe: 1) Cable trays, trunking, ndi th...
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