Mbale zimakhala ndi zotseguka zokwanira 40% kuposa zoyambira za aluminium. Zopangidwa ndi zomveka bwino, mtundu wa 1 kalasi ya kapena amber, mtundu 1 B, Galasi ya Borosilther. Mbale amapereka cholembera chomaliza cholembedwa chomaliza cholemba mosavuta ndi chizindikiritso