Extruded Polystyrene Board (XPS Board) features excellent thermal insulation, moisture resistance and high compression resistance. Produced from polystyrene resin via eco‑friendly CO₂ foaming technology, it forms continuous closed‑cell honeycomb structure inside. With low thermal conductivity, low water absorption and high compressive strength, it is widely applied for building roof, floor, external wall and cold‑chain thermal‑insulation energy‑saving projects.