... Applicable Materials:Stainless steel,aluminium extrusion,aluminium sheet,iron plate; Applicable industry:channel letter CNC Bending ... speed10~40M/MIN11MaterialsStainless steel,aluminum extrusion, galvanized sheet,aluminum sheet …etc12RangeTypes of channel letters made of metals. ... saw with diamond coating, not only for iron sheet and aluminum sheet, but also for stainless steel and aluminum ...