Vetri da orologeria, da occhialeria comune e simili, curvi, piegati e simili, compresi i globi cavi ed i segmenti ###>Clock end watch glasses and similar glasses (including glass of a kind used for sunglasses but excluding glass suitable for corrective lenses), curved, bent, hollowed and the like; glass spheres end segments of spheres, of e kind used for the manufacture of clock and watch glasses and the like