Color steel sandwich panels and color steel plate What is the difference
Galvanized steel pipe is divided into cold galvanized steel pipe, hot galvanized steel pipe, cold galvanized steel pipe has been banned, which is also the country to promote the temporary use
Color steel sandwich panels are divided into rock wool sandwich panels, foam sandwich panels, rock wool color steel sandwich panels
Excuse me, where are you in? Indoor insulation is generally made of "polystyrene foam board", the general thickness is 2..3 cm thick, you can understand clearly, in the end is how thick the foam board (when playing screw holes, can be found is thick thick foam board) The There is that you can use .7 inside the expansion screw, to the hardware store to find can match. You can also use welding, then a long screw, is also very simple.
