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Polyurethane Hard Foamed Plastic is an ideal kind of organic low temperature heat insulation material.
聚氨酯硬泡是一种理想的有机质低温隔热材料。
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The sandwich foamed pipe is a new kind of piping material.
芯层发泡复合PVC管材是一种新型塑料管材。
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The sandwich foamed pipe is a new kind of piping material.
芯层发泡复合PVC管材是一种新型塑料管材。
youdao