... material:all kinds 3.CE ISO 4.iron black sheet metal iron black sheet metal processing/cnc precision parts cnc ... steel, iron, copper, aluminium ,carbon steel, etcFinishzinc plated steel, natural color or as per your requirementWeight50gMOQ1PCAdvance Measuring equipmentroughness tester,hardness ... ,generator parts, alternator parts.dynamo parts.etc. iron black sheet metal processing/cnc precision parts