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我厂生产的柴油机进气支管零件,是一个带有柱面凸缘的矩形拉深件,其几何形状及尺寸如图1所示。由图中可以看出,该零
I plant production of diesel intake manifold parts, is a cylindrical flange with a rectangular drawing parts, the geometry and size shown in Figure 1. As can be seen from the figure, the zero