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Hordhaca Rebar
Rebar waa magac caan ah oo loogu talagalay baararka birta ah ee feeraha duuban ee kulul.Darajada birta kulul ee caadiga ah waxay ka kooban tahay HRB iyo dhibicda ugu yar ee wax-soo-saarka fasalka.H, R, iyo B waa xarfaha ugu horreeya ee saddexda eray, Hotrolled, Ribbed, iyo ...Akhri wax dheeraad ah -
Horudhaca Gariiradda Taarikada Birta
Gariiradda birta, sidoo kale loo yaqaan birta gariiradda.Birtu waa mid kulul oo qabow lagu riixay duubab.Si loo fududeeyo kaydinta iyo gaadiidka, way ku habboon tahay in la sameeyo habayn kala duwan (sida farsamaynta taarikada birta, stee...Akhri wax dheeraad ah