... contents characters, alphanumeric, date, numbers, serial NO,VIN code etc.Marking area 140x80mm (customized support)Up and down ... motorcycle, car frame ,automotive chassis, engine, mechanical part, machine tool, metal pipe, gear, pump body, valve, various hardness ... barcode reading marking, ticket, dot matrix, 2D code(two-dimension code), circumferential parts marking and connected to database marking. ...