... used in steel structure workshop, easy building and air clean room as walls, ceilings. Specification Effective widthWall panel: 950mm ... 200mmdensityRock wool 120-250kg/m3,EPS 12-35kg/m3,PU 35-50kg/m3Conventional colorOcean blue, tephrosiouslifetime15~20 yearsCharacterLight ... Composition: Core materials: EPS, XPS,Rok wool, Glass wool,PU, PUR Surface materials: PPGI, GI, Stainless steel sheet, galvalume ...