... -power, mine, metallurgy, petroleum, chemical, food, pharmeceuticals, glass, printing and machine making industries; Heat treament, drying, cooling, refrigerating, cleaning, dehydration, sintering ... , sludge draining, printing, etc. Used in sintering furnace, annealing furnace, continuous tunnle furnace, travelling furnace, high-temperature furnace, production line, etc. The left-wound and right ...