Perlite Expansion & Vitrification Furnace is invented by our factory director and senior engineer Kong Keqiang in February 2003, in the same year, He obtained patent for this kind of furnace, and it is the first one in the world to be put into industrial production, there are 30 furnaces which have already running for 5 years continually, they are used to produce closed pearlite vitrified microspheres and hollow perlite vitrified microspheres. We use 6 microcomputers to full automatically control technology processes of closed pearlite vitrified microspheres such as sand softening, crystal water vapourization insantaneously, size of hollow balling, shell vitrified for water-proof and shell hardening. KKQ is the abbreviation for name of patentee Kong Keqiang, and it is also trademark and model mark of KKQ Perlite Expansion & Vitrification Furnace, which can avoid counterfeiting, please buy product with KKQ mark, it ensures good quality and after-sales service.
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