... contents are not restricted,including the pattern artwork,company brand,the serial number,products serial number,supervising unit and including specifical ... Can be used to guard against false,extending the brand,the handicraft article marking,etc.Every living body can ... 7000 mm/sEngraving depth: ≤1 mm(depends on the Materials)Minimum linewidth 0.015mmMinimum character 0.2mmRepeatability precision ...