... quality Sandwich Panel 4, ISO9001 sandwich panelProduct DescriptionHeat Insulation / Inflaming RetardingThickness: 50mm-200mmWidth: 950mm/1150mmSteel Thickness ... : 1. Composition: Core materials: EPS, XPS,Rok wool, Glass wool,PU, PUR Surface materials: PPGI, GI, Stainless steel ... on4.Advantages: Energy-saving Light weight Sound insulation Environmental protection Most area-saving Most waterproof Most ...