... temperature: 643°CThe content of the organics: 2.9% Characters: Light weight, fireproof , heat-insulation, sound absorption, and anti-seismic ... , workshop,warehouse, office block, exhibition halls, gymnasiums, store, canopy, light steel villa, residence, container house etc. ItemPUEPSRock WoolSteel Thickness0.5 ... Thickness50~100mm50~200mm50~100mmFireproof GradeB1B2B1 rock wool sandwich panel for sale