This product is a truck type resistance furnace, which is the national standard energy-saving cycle type operation furnace, super energy saving structure, using fiber structure, saving up to 60%. The exclusive production uses composite high-aluminum porcelain nail group, anti-impact sealing bricks for the trolley, automatic sealing of the trolley and the furnace door, integrated rail, does not require basic installation, and can be used on the horizontal ground. Mainly used for high chromium, high manganese steel castings, ductile iron, roll, steel ball, 45 steel, stainless steel and other quenching, annealing, aging and various mechanical parts of the heat treatment.