The invention relates to a composite material closed boxcar which comprises a box body, wherein the box body consists of an outer layer, a middle layer and an inner layer.
一种复合材料封闭货车车厢，包括箱体，所述的箱体由外层、中层和内层构成。
The invention relates to a composite material closed boxcar which comprises a box body, wherein the box body consists of an outer layer, a middle layer and an inner layer.
一种复合材料封闭货车车厢，包括箱体，所述的箱体由外层、中层和内层构成。
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