As a new type constructional material, sandwich panels are applied in engineering more and more.
作为一种新型建筑材料，夹芯板目前在工程中得到了愈来愈广泛的应用。
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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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