outstanding sound insulation and fireproof,great strength and rigidness,rot resistance and fungus proof Specification1)Total thickness:4mm,6mm,8mm,15mm,20mm,25mm,50mm2)Cell foil thickness:0.03mm~0.08mm3)Width standard width:1220mm maximum width:1990mm special width avaliable upon request4)Length standard length:2440mm special lengthavaliable upon request5)Standard size:1220*24406)Surface coating: ...