Rotatory glass plate optical sorting machine Machine's Character: * Measurement for simultaneous top/bottom inspection. * Also suitable for tiny electronic parts. Adaptable Product: O-ring, seal, packing and product can stand stably on the glass surface. Inspection items: 1.Hole diameter 2.Concentricity 3.Thickness 4.Crack 5.Color 6.Surface Stain 7.Bubbles 8.Burrs.