decorative 3d wall panels 1.Size:5/6/7/8mm*20cm*5. ... :(1)Thickness: 5.5mm, 6mm, 7mm, 7.5mm, 8mm, 8.3mm, 8.5mm, 9mm, 9.5mm, 12mm.(2)Width: 10cm, 16cm ... Negative deviation not allowed.e) Thickness Not less than 0.3mm/sqm.f) Physical and chemical properties See the table below ...