规格TYPE(mm) | 工作面平面度Flantness of working surface | V型槽对测面平行度Parallelism between V slot and bottom surface | V型槽对测面平行度Parallelismbetween V slot and side surface | V型槽对两侧面的对称度Symmetry between V slot and side surface | V型槽侧面对端的Squareness between V slot and end surface | V型槽对底面垂直度Squareness between V slot and bottom surface | 一对V型块对底面的高度差Height difference of the V slot with in a matched pair |