Section 13 ARTICLES OF STONE, PLASTER,CEMENT,ASBESTOS, MICA OR SIMILAR MATERIALS; CERAMIC PRODUCTS; GLASS AND GLASSWARE 70 Glass and Glassware. 70 11 GLASS ENVELOPES (INCL. BULBS ANDTUBES), OPEN, AND GLASS PARTS THEREOF Commodity Code Description 70 11 10 For electric lighting 70 11 20 For cathode-ray tubes 70 11 90 Other