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Features double-sided color-coated steel or stainless steel facings with an integral polyurethane foam core; manufactured via a continuous high-pressure foaming and bonding process, resulting in a void-free structure and exceptional overall sealing performance.

Top and bottom facings: Color-coated steel sheets (galvanized or Al-Zn coated).
Core material: EPS (expanded polystyrene) foam; a lightweight foamed core formed by compression and bonded into an integrated unit using adhesive.

Rock wool sandwich panels are composite, fire-resistant, and thermally insulating boards. They feature color-coated steel or stainless steel facings with a high-density rock wool core, formed through high-pressure bonding and sealing. They are a mainstream Class A fire-rated material for building envelopes.