... performance reach to the state JJG696-2002 (Lens Luster Degree Instrument Measure Test Regulations) the first class ... work requirements.2.Specification: ETB-0686Projecting angle60 ºApplicationsThe surface luster measure for printing ink, oil paint, bake lacquer, ... coat, woodwork and others. The surface luster measure for construction decoration materials: Marble; granite; glass chemical ...