Profile: Hitemp Ceramic Industries specializes in the manufacture and export of laboratory furnace products. We manufacture ceramic furnace supports, thermocouple tubes, sheaths, beads, kiln furniture, laboratory furnace parts, refractory shapes, wear resistant ceramics and grinding media. Our combustion boats are used in the estimation of carbon in steel samples. The sample of steel drilling is taken in a combustion boat and placed inside a tube furnace maintained at 1300° to 1400° & oxygen is passed over it which combines with carbon of the steel & CO₂ is estimated.