... -20days,Warranty:15-20 years. Detailed products specification Commodity:Aluminum Composite Panel / MaterialBrand Name:Darren ACP & OEM availableFire-rating:Grade A2 ... ASTM, Samples:Free charge of samples , catalogue and color chart Panel Dimensions:Thickness (mm)2mm, 3mm, 4mm, 5mm, 6mm ... 0.0057/0.0012Core CompositionLDPE Polyethylene, Non- Combustible Material Marble ceiling Aluminum composite panel