Gaashaanka tayroodhka ee macdanta ledhka ayaa inta badan loo isticmaalaa baadhitaanka caafimaadka kaas oo siinaya difaac wax ku ool ah ee raajo bukaanka. Waxaan bixin karnaa cabbirro kala duwan iyo sunta rasaasta u dhiganta gaashaanka tayroodhka sida waafaqsan shuruudahaaga. Waxaan bixin karnaa 0.25mmPb, 0.5mmPb iyo 0.75mmPb ee gaashaanka tayroodhka ee ledhka oo midabyo iyo cabbirro kala duwan leh.