Waa maxay walxaha loo isticmaalo hoyga matoorka iyo sababta?

Matoorada awoodda sare leh ayaa ah bir la shubay, matoorada tamarta yarna waa shubista aluminium.

Guud ahaan, mishiinka korontada waxaa lagu shubaa bir cawl leh.

Inta badan ama dhammaan kaarboonka ku jira birta cawlan waxay u jirtaa qaabka garaafiga flake, jabkuna waa cawl. Sida laga soo xigtay noocyada kala duwan ee garaafyada, birta kabka cawl waxa loo qaybin karaa saddex nooc, bir kabka cawlan, birta shubka ah ee la malleable iyo birta ductile. Saddexdan nooc ayaa loo isticmaalaa in lagu sameeyo guryo matoorka. Qiimo jaban mana fududa in la qaabeeyo.