I would like to use Caigang sandwich panels to do the indoor ceiling ... how to use what keel .. how the ceiling thank you
Swallowtail screws (also known as drilling screws) is a color plate dedicated screws, thousands of square meters of large factories are fixed with how it will be unstable, light steel keel is absolutely not work.
Keel base, do the framework, sandwich panels directly fixed to the top
With the color steel sandwich panels do indoor ceiling? Do not understand what is meant, is the indoor do? Color plate ceiling can not use hanging keel, to use 60X60 square tube welding or C steel, and then on the color plate on the top with the tail from the tapping fixed.
It depends on the specific size, the span is not the same material is not the same
