... colour-coated panel/zinc plate, hot galvanized plate/stainless steel panel2. Core material---The density of this(mineral)Rock wool is: ... Detailed parameters: 1. Composition: Core materials: EPS, XPS,Rok wool, Glass wool,PU, PUR Surface materials: PPGI, GI, Stainless steel sheet ... as red bricks, clay solid bricks, air bricks, color-coated steel sandwich boards, gypsum blocks, wire spatial grid structure ...