polyurethane panel
Four, steel structure material: polystyrene, extruded board, polyurethane board, glass cotton lap. Felt.
钢构材料:聚苯乙烯、挤塑板、聚氨酯板,玻璃棉卷毡等。
—— 给力词典精选The Application of Aluminum Foil Faced Rigid Polyurethane Foam Panel in the Wind Pipe
铝箔贴面硬质聚氨酯板在空调风管上的应用
—— 给力词典精选