Technotherma India [Pvt] Ltd. Supplies Melting cum Holding Heat Treatment Furnace. Technotherma India [Pvt] Ltd. Manufactures various types of heat treatment furnaces, industrial furnaces, and annealing furnaces. The Melting cum Holding Heat Treatment Furnace is electrically heated or fuel fired melting cum holding furnace is used for melting and holding the melted metal for casting. The mould in the furnace can also to rotate at certain RPM for proper mixing of alloys and low density material to surface on the periphery.