21 Figured plate glass, not for building; Crystal glass; Semi-processed cellular glass for making filters, namely, filters for sewage and waste water treatment; Insulating glass; Soundproof glass; Laminated flat glass, not for building; Tempered glass, not for building; Semi-finished safety glass; Burst proof glass; Heat resistance glass; Reflecting glass; Plate glass for cars; Anti-irradiation glass; Non-construction semi-processed glass; and Fused silica, other than for building