Njerwa ndi zida zomangira zodziwika bwino, ndipo zimagwiritsidwa ntchito kwambiri m'magawo ambiri. Monga imodzi mwa mafupa omanga, kufunikira kwa njerwa kukukulirakulira pang'onopang'ono. Inde, njirayi ndi yosasiyanitsidwa ndi kugwiritsa ntchito makina opangira njerwa. Ndi ver
Chiyambi cha Hollow Block ManufacturingHollow block kupanga ndi njira yovuta kwambiri pantchito yomanga, yopereka zida zomangira zofunika pamitundu yosiyanasiyana. Njirayi imaphatikizapo magawo angapo, kuchokera pakupeza r
Pali mitundu yambiri ya makina a njerwa pamsika, pakati pawo pali makina a njerwa otchedwa makina a konkriti. Koma kodi mukudziwa zozindikiritsa makina oyika njerwa? Kodi mukudziwa zomwe zilembo za nambala ya njerwa zimayimira?
Iwo ndi gulu lodzaza ndi malingaliro ndi chilakolako. Kufunafuna kwawo zatsopano ndi mzimu wochita chidwi zimagwirizana ndi ife. Ndikuyembekezera mgwirizano wotsatira.