Detailed Product Description NCQ/B-Plane & round dual marking type Marking contentsDigit, Chinese or English character, graph ... plane/flat marking type: NCQ/A-135/200/250B plane & round dual marking type: NCQ/B-135/200/250C portable type ... , chassis, girders, engine, connecting rod, cylinder, piston, cylinder sleeve, gear, water pump, steel spring plate etc.2. Machinery industry: to mark ...