Telelec corporation india offers bobbin type immersion heater. This heater is made from m.S./s.S./titanium pipe welded to a c.I./s.S. Flange. The heater is the replaceable refractory type, which can be replaced easily. Can also be supplied with a lead covering. This is used to heat oil, water, foodstuff, alkaline solutions, anodizing and plating baths etc.