Joshua enterprises offers cartridge heaters, marketed by sun hot enterprises. These are manufactured for moderate watt density with shock and vibration resistance. These come in mild steel, brass or stainless steel sheath. Heat distribution efficiency is quick and unifoem. The heaters are economical, versatile and last longer. The terminals are in fibreglass-insulated wire, screw type and of many more varieties. These cartridge heaters come with a variety of diameter and length they find application in packaging machinery, pharmaceutical machinery, dies and moulds, shoes building and plastification barrels.