Described are the development process, main usage, technical parameters, main structure and testing of the D28 depressed center flat car.

介绍了D 28型凹底平车的研制过程、主要用途、技术参数、主要结构及试验情况等。

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Described are the performance, structure, heat energy calculation and model selection design of the cover type holding furnace on depressed center thermal car for hot steel plates.

介绍了凹底热钢保温车的性能、结构、保温罩式炉热能计算和选型设计。

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The utility model also provides a railway depressed center flat car.

本实用新型还提供了一种铁路凹 底平车。

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