Way ku habboon tahay in la go'aamiyo engegnaanta Brinell ee birta aan la demin, birta shubka ah, biraha aan birta ahayn iyo daawaha sida jilicsan.Waxa kale oo lagu dabaqi karaa tijaabinta adkaanta caaga adag, bakelite iyo walxaha kale ee aan birta ahayn.Waxay leedahay codsiyo ballaaran oo kala duwan, oo ku habboon cabbirka saxda ah ee diyaaradda, cabbirka dusha sare waa mid deggan oo la isku halleyn karo
