... Turntable Process: In spite of raw brick want to go into dryer or tunnel kiln, it must pull ... light oil, natural gas, LPG, buyer can selection through evaluation. If use coal for fuel, it must be ... curve to fire. 3.Cooling Process: The bricks go through firing zone and enter into cooling zone, utilize fan ... for heating source. 4.Finished Products: Those bricks go out the tunnel kiln, then they will be ...