rigid polyurethane foamtherm-al insulation的意思|示意
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rigid polyurethane foamtherm-al insulation的网络常见释义
硬质聚氨酯泡沫塑料保温层 硬质聚氨酯泡沫塑料保温层 rigid polyurethane foamtherm-al insulation 塑料粉末涂层 plastic powder coating ..