HRC

Industrial chemicals for opaque glass production; industrial chemicals for glass solder production

Optical lamps, lasers for industrial use and as laboratory equipment, products made of quartz glass for use in chemical industry, in electrical industry, in semiconductor industry as scientific, chemical, and physical apparatus and instruments and for laboratory purposes, namely, cuvettes, polished plate quartz glass for use in inspection windows, bells and epitaxy tubes, wafer carriers, catalyst carriers for use as substrate for catalysts, laboratory trays, diffusion tubes made of quartz glass for use in the chemical industry, in the electrical industry, and in the semiconductor industry as scientific, chemical, and physical apparatus and instruments and for laboratory purposes, fused quartz bell jar, quartz glass for use in the chemical, electrical and semiconductor industries, namely, flasks, crucibles, cups, and beakers; products made of quartz glass as parts for optical devices, in particular optical lenses, prisms for scientific purposes, optical components, namely, plates for diffuser, reflectors, filters, optical mirrors, mirror carriers, light guides, optical fibers; melting crucibles for use as laboratory equipment, all of the foregoing goods for non-medical purposes

Quartz lamps for medical purposes, medical examination lamps, surgical lamps, lasers for medical use, optical radiators being infrared radiator units for therapeutic purposes; diffuse reflectors as component parts for each of the foregoing goods

Electrical lamps, infrared radiators not for motors and engines, Ultra-violet radiators not for motors and engines, furnaces; reflectors for electrical lamps; melting crucibles, diffuse reflectors as accessories for electrical lamps, infrared radiators not for motors and engines, UV radiators not for motors or engines, and furnaces; lamp housings made of quartz glass, namely, for ultraviolet radiators and for infrared radiators

Fusing frit of quartz glass being ground glass used as a component in glassware for use in the chemical, electrical and semiconductor industries; quartz glass fibers not for textile purposes; translucent fused quartz as a semi-finished product not for use in construction, namely, ingots, tubes, rods, discs, plates, rings, and blocks all for general industrial and further manufacture use; semi-finished goods, namely, tubes made of quartz glass for optical fiber production not for scientific purposes