Birta ka horaysay ee birta ah waa wax soo saar si isdaba joog ah u rinji xaashida birta zinc-pinc-plated plated steel. Waxyaabaha ugu caansan ee loo yaqaan 'waa GI. In ka badan 85% wadarta wax soo saarka soosaarka ee kg bir bir ah ayaa ah birta cufnaanta ah. Birta ka horayysa ee Qurban ee Qarxinta ayaa leh faa iidada iska caabbinta aadka u fiican sababta oo ah zinc plating, waxaana badanaa loo isticmaalaa gogosha bir bir ah sida qalabka gudaha iyo waxyaabaha bannaan, iyo sharoobada guriga.