Gooyaha yar-yar ee balaasmaha ayaa jari kara taarikada birta, sida birta kaarboonka, birta aan fiicnayn, naxaasta, aluminium iwm.
Cutubkan yar ee balaasmaha ah waa beddelka toosh ololka ah oo gacanta lagu hayo, gooyaha balaasmaha gacanta lagu hayo.Goyn karaa profile kasta oo adag biraha.