... routine working conditionMain partsMarking machine main body, plane & spin dual marking controller, driving program (software disc), circumferentially marking fixture ... type: NCQ/A-135/200/250B plane & round dual marking type: NCQ/B-135/200/250C portable type: ... or trademark etc. on workpieces such as vehicle body, vehicle frame, chassis, girders, engine, connecting rod, cylinder, piston, cylinder ...