... a layer of asbestos sheets, then five layers of refractory bricks, then with refractory filler, which form into an inverted arch. After drying ... entire furnace, clay bricks in 113mm thickness are laid between the wall and the encircling plates, and refractory filler in 50mm thickness ... of convective impact;2.6 Melting capacity: 1,200°C3.7. Temperature of metal3.8 Casting speed: 15~18t/h.3 ...