Safety glass (shatterproof) tempered for land transportGlass multilayer insulation including windowsParts of glass for lamps and lighting fittings, illuminated signs illuminated signs and similar productsGlass electrical insulatorsProducts glass for signaling devices and optical elements of glass, not optically worked, other than those included in the subcategory 23.19.22Electrical insulators of ceramics, metal parts for overhead power lines and catenarySleepers, reinforced-concreteProducts from concrete or artificial stone, not included in other categories