... , rust, corrosion, weld scale . cup brush,Heavy-duty cleaning of large metal surfaces.weld scale and corrodion removal,cleaning prior to ... steel wire,galvanized steel wire and steel cordBowl type:galvanized bowl and painted bowlColors:red and blueUsed for heavy cleaning jobs ... and for brushing large surfaces with good balanceOther diameters:65,75,85,90,100 ...