规格TYPE(mm)
工作面平面度相对面平行度Flantness of working surface¶llelism of opposite surface
工作面间垂直度Squareness between working surfaces
每对平行规H、W等高之差Tolerance of h.w between amatcheed pair
精度等级Precision grade
00
0
160x25x16
1.5
3
20
40
250x40x25
2
4
30
60
400x63x40
8
80
630x100x63
6
12
50
100
平行规：可替代等高块，用花岗石平行规：用于测量零件的平行度，成对供应。
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