stringer wheel brush twist cleaning of large metalsurfaces,wel scale and corrosion remobal ,prior to welding,ships,steel tanks. stringer wheel brush twist cleaning of large metalsurfaces,wel scale and corrosion remobal ,prior to welding,ships,steel tanks. raw material : steel,stainless steel Size :100mm,115mm,125mm,150mm,175mm package : colour box,blister card,double blister card