Profile: Laboratory Craftsmen, Inc. offers heating mantles, power controls, magnetic stirrer and support plates. Our brands are Econostir™, Powermite™ and Thermowell™. Heating mantles are used in industrial & pharmaceutical chemical labs, research institutes, medical labs and glass blowers. Magnetic stirrer is designed for stirring the contents of round-bottom flasks that are being heated with a flask heater. It can stir liquid systems in beakers and flat bottom flasks.