Kraft paper is wrapped and crumpled to fill empty space inside a package with light to medium weight, non-fragile items.
使用牛皮纸包装并使牛皮纸折皱，以填充轻到中等重量、非易碎物品的包裹内的空隙。
In Ji 'nan steel housing area, polystyrene foam is often used as a fill color steel sandwich panel in the he has the advantages of light weight, cheap price, good sound insulation, heat insulation.
在济南彩钢板房的领域，聚苯乙烯泡沫常常被用作彩钢夹芯板里的填充物，他具有质量轻，价格便宜，隔音，隔热好的特点。
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