HERAEUS QUARTZTECH

Equipment made of quartz glass for use in the chemical industry, the electronic industry, the semiconductor industry and for laboratory use, namely, crucibles, trays, belljars, flanges, boats/wafer carriers, tube reactors for diffusions and epitaxial growth, catalyst carriers; products made of quartz glass for use as auxiliary devices in the fiber optic industries, namely muffle tubes, inner- and outer-downfeet-handles, irradiator tubes, cleaning heads, quartz rings none of the above being for use for, with or in relation to circuit element crystals, crystal filters, or to control the frequency of an oscillator