与箱体上开口对应的箱盖也为双层不锈钢壳体，其夹层内设有保温材料层。
A case cover corresponding to an opening of the box body is also a double-layer stainless steel casing and an insulation material layer is equipped in a mezzanine of the casing.
吨箱体，采用独特的保温结构和高效保温材料的保温料仓，能对沥青混合料进行长距离，大容量的运输工作。
Especial 7ton tank, it adopts particular heat preservation maintenance structure and high temperature preservation box; it's suitable for the long distance and huge capacity transportation.
吨箱体，采用独特的保温结构和高效保温材料的保温料仓，能对沥青混合料进行长距离，大容量的运输工作。
Especial 7ton tank, it adopts particular heat preservation maintenance structure and high temperature preservation box; it's suitable for the long distance and huge capacity transportation.
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