... )capacity:water proofing,fireproofing Item : PU sandwich panelDetails : Polyurethane Sandwich Panel also called PU Sandwich Panel, the up & ... and ppgl), core material is six components Polyurethane glue, it is formed by heating, foaming & laminating ... --Yearly production capacity(8hr working/day) 1,000,000m2 700,000m2 700,000m2 800,000m2 --Fire resistancebadgoodgoodnormalgood Polyurethane foam sandwich ...