Sandwich Panel 1, Excellent price 2, Light weight Sandwich ... panel2. Core material---The density of this(mineral)Rock wool is: 120-250kg/m33. Side steel strip or ... 1. Composition: Core materials: EPS, XPS,Rok wool, Glass wool,PU, PUR Surface materials: PPGI, GI, Stainless steel ... Raw materials do not include harmful substances Environmental products, it is highly recommended by the government Capacity ...