Is it nice to use a light steel keel or a wooden keel?
Light steel keel is good, wood keel will be hair enzyme, but the price is cheaper than the former
Of course, is the light steel keel, you can choose DU50 system ceiling keel, carrying keel thickness of not less than 1.0mm (GB 1.2), cladding keel thickness of not less than 0.45mm (GB 0.5)
Certainly is light steel keel is good, fire is not easy to deformation shortcomings is no way to do modeling, such as profiled ceiling wood keel can do the cost of the opposite is relatively high
