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图1所示为我厂生产的LS20救护车上的一种门立柱零件简图。从图可以看出,该零件的横断面基本上属于复杂的U类断面。
Figure 1 shows a schematic of a door pillar on a LS20 ambulance manufactured by our factory. As can be seen from the figure, the cross-section of the part basically belongs to the complex U-type section.