A sandwich panel is one structure made of three layers of material: low density core inserted material in between two relatively thin steel skin layers.
Polyurethane Sandwich Panel also called PU Sandwich Panel, the up & down surface of this panel is Galvanized & Pre-painted steel sheets, core material is 5 components Polyurethane glue, it is formed by heating, foaming & laminating. Polyurethane is the best material for temperature keeping and sound insulation.
Rock wool sandwich panels is one kind of sandwich panels,which is combined by rock wool as core material and two steel sheets on up and down side.Compare to other kind of sandwich panels,the most outstanding features of rock wool insulated panels is fireproof level,which is A1 level.In order to meet customers' requirements,we have different kinds o1