Balaji Engneering Co. Supplies Baking Oven with Grid Steel Shell. Balaji Engneering Co. Manufactures plant semi automatic machineries. Baking Oven with Grid Steel Shell is a robust construction oven which consists of drying heating element blowers for horizontal air circulating and automatic temperature control system. Baking Oven with Grid Steel Shell has the facility of thermostats which protect the oven against over heating. The space between the double walls of the oven is packed with grade insulation material.