Large-diameter quartz tube: large diameter quartz tube is a special type of transparent quartz tubes. Large diameter quartz tube with high temperature corrosion resistance, thermal stability, good transparency and good electrical insulation and a series of excellent physical and chemical properties, is widely used for special metal smelting molds, precision chemical pipelines, electric furnace tubes, diffusion tubes, cleaning tanks and production equipment, square cylinder, quartz plate and so on. Our company firstly introduced the latest technology of large diameter quartz tube equipment-- Asia's single largest tungsten and molybdenum 760mm crucible, 350mm diameter big inch quartz tube can be directly turned out, which refreshed the maximum size of internal made though melting method.