... 4,low cost 5,high profit,worth of money... Programmable Electric Furnace SX2-2.5-101,Summary of Usage: The apparatus can ... , annealing and tempering of small steel by heating. High temperature furnace can be used in metals, ceramic material for heating, melting ... are thermal insulation materials between body and shell of the furnace. The furnace door fixed on the surface through multi-hinges that ...