Structure of building an external furnace:
1. The temperature in the furnace is even, consumes little energy.
2. The outer color of the product is uniform
3. Can adjust automation, adjust temperature accurately
4. Suitable for producing decorative bricks, heat-retaining bricks

Incinerator type:
1. Chemical production, quick installation, short time
2. Less energy consumption
3. Light weight body furnace, so the cost of doing nails low
4. Flexible dismantling, convenient transportation