Light steel keel plus wood can ceiling it
Aluminum ceiling installation can choose light steel keel and wood keel, but now the market are basically using light steel keel, after all, light steel keel is metal!
Usually pastoral style of the balcony will choose the wooden floor ceiling. And now there are many wood ceiling material is able to anti-corrosion moisture, the selection process can do many aspects of understanding.
Light steel keel plus wood can be ceiling, as long as your city is relatively dry city, you can choose wooden ceiling.
