... needs Ceramic heater with air cooling effects, and other heating elements, e.g. mica heater, cast aluminum copper heater, tubuar heater, etc ... and RoHS certified4. Various sizes to your needsThis heater is mainly used for extrusion, casting and ... W/C.Its advantages include fast speed of heating, high rate of heat utilization, excellent energy ... fibre moulding machines. Air cooling & heating system