编号 No | 规格 Dimension mm | 工作面 平面度 Flatness of working surface (μm) | V形槽对底面的平行度 Parallelism between V slot to bottom surface(μm) | V形槽对侧面的平行度 Parallelism between V slot & side surface(μm) | V形槽对两侧面的对称度 Symmetry between V slot&side surface(μm) | V形槽对端面的 垂直度 Perpendicularty between V slot & end surface(μm) | V形架侧面的 垂直度 Perpendicularty between side surface & end surface(μm) | V形架V形槽对底面的高度差 Height difference of the V slot within a matched pair (μm) |