Zibo Longtai Cave Industry Technology Co., Ltd. As a long term manufacturer specializing in silicate ceramic frit furnace, sodium silicate furnace, sodium (sodium silicate) furnaces, glass-ceramic (aggregates) kiln, glass furnaces, crucible furnace engineering, refractory, furnace equipment, coal gas producer, heat engineering, various types of energy combustion application engineering, automatic control engineering, is a multiple categories and disciplinary professional high-tech company.