Chemicals used in industry; Synthetic silica, in particular synthetic silica manufactured using flame hydrolysis for further processing in connection with the manufacture of finished goods; Granules made from synthetic silica; Chemical preparations for manufacturing slips, in particular chemical preparations for manufacturing slips containing silicon dioxide; Chemicals for the manufacture of black glass, in particular chemicals for the manufacture of uniformly opaque black glass

Scientific, measuring, checking supervision apparatus and instruments, namely, laser distance meters, pressure measuring apparatus, spectrometers, reflectometers, installations for photolithographic structuring of a photoresist layer; Reflectors being parts or fittings for lasers, not for medical purposes; Products of quartz glass for use in the chemical, electronics and semiconductor industries and for laboratory purposes, namely, cuvettes, crucibles, bowls, beakers, bell jars, flanges, shuttles, catalyst holders; Products of fused quartz for optical devices, namely, plates, filters, mirror holders; Lenses, mirrors or reflectors, in particular lenses, mirrors or reflectors of quartz glass, for use in detectors for determining physical variables of electromagnetic waves, spectrometers, reflectometers, installations for photolithographic structuring of a photoresist layer, in particular in installations for photolithographic structuring of a photoresist layer in the manufacture of integrated circuits, vacuum chambers for modification of surfaces, in particular for vaporising, hardening, sputtering or plasma etching of surfaces, in particular for LED manufacture; camera systems for optical quality control or for control of positioning systems, in particular camera systems for optical quality control or for control of positioning systems which work within a wavelength range of 2000 - 3500 nm

Lighting apparatus, namely, lighting installations, lamps, arc lamps, germicidal burners for laboratory use, furnaces, other than for laboratory use, distillation apparatus not for scientific purposes, gas lamps, gas purification machines; Lighting systems and lighting devices for lighting systems for curing, cleaning or activating surfaces for preparing further process steps or for modifying surface structure, all the aforesaid steps in particular using ultraviolet (UV) radiation

Insulators for electric mains, in particular insulators for electrical machines and installations in the semi-conductor industry, all of the aforesaid insulators being of ceramic or of fused quartz; Glass wool for thermal insulation

Unworked or semi-worked glass, except glass used in building; glassware, namely, for lamp tubes, semiconductor machines; Fused silica as a semi-worked product, other than for building, and semi-finished products made therefrom, namely, tubes, poles, plates, blocks, rings; Synthetic fused quartz as a semi-worked product, other than for building, and semi-worked products made therefrom, namely, tubes, poles, plates, blocks, rings; Synthetic vitreous silica fibres, not for textile use; Synthetic black fused quartz as a semi-worked product, other than for building, and semi-worked products made therefrom, namely, tubes, poles, plates, blocks, rings; Synthetic opaque fused quartz as a semi-worked product, other than for building, and opaque semi-worked products made therefrom, namely, tubes, poles, plates, blocks, rings; Opaque synthetic vitreous silica fibres, not for textile use; Articles made from fused quartz or glass bodies, namely, ingots, tubes, rods, discs, plates and rings all for general industrial and further manufacturing use