... including the fields of automobile, motorcycle, mechanism, petroleum, aeronautical and space, electric apparatus and suitable for markings on steel, metal, nonmetal ... Depth0.01~2mmMarking Speed≤50mm/second (for characters height of 3mm or 3-4 numbers /second)Lifting Range0-300 ... MachineExhibition Photos: LCD Control Metal portable Dot Peen Marker with CE for Stainless Steel / Aluminum / Iron ...