We are engaged in manufacturing and exporting excellent quality Quartz Crucible High in Gus-Hrustalnyj, Vladimir, Russia. Crucibles made of transparent quartz glass. Chemically resistant to inorganic acids, except hydrofluoric and phosphoric. This product is resistant to crystallization for 15 minutes at a temperature of (1000+-20) degrees C, followed by cooling in air at a temperature (20+-5) degrees. The product does not leave cracks and chips after 20 thermal cycles.