1) Light weight and heat insulation 2) Easy to install 3) Produce fast (10000square meters panels can produce in 2 weeks) Core material of panel PolyurethanePanel availiable thickness 50mm,75mm,100mm,120mm,150mm,200mmMaterial of panels surface Color plate, Stainless Steel, etc.Surface of panels thickness 0.326mm, 0.376mm, 0.426mm, 0.476mm, 0.526mm fruit and vegetable cold room suppliers