Flange birta kaarboon, oo ah walxaha jidhku waa flange birta kaarboon ama xidhiyaha flange dhamaadka. Kaas oo ka kooban flange birta kaarboon, oo loo yaqaan flange steel carbon. Waxyaabaha caadiga ah waxaa lagu shubaa darajada birta kaarboon ee WCB, been-abuurka A105, ama Q235B, A3, 10 #, #20 birta, 16 manganese, 45 birta, Q345B iyo wixii la mid ah. Markaas...
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