Update 23 Apr 2020
what is polyurethane sandwich panel
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2020-04-23
what is polyurethane sandwich panel
Polyurethane edge-sealed rock wool sandwich board is the best internationally recognized building envelope fire prevention and insulation board. It has low thermal conductivity, good endurance, high bending strength, no water absorption, no decay, no moth bite, good flame retardancy and wide temperature resistance range.
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