|
||||||
花岗石直角尺规格(mm)
|
测量面对基面垂直度um
|
测量面平面度或直线度um
|
基面平面度或直线度um
|
|||
花岗石直角尺精度等级
|
||||||
00
|
0
|
00
|
0
|
00
|
0
|
|
100×63
|
2
|
4
|
1
|
1
|
1
|
1
|
160×100
|
2
|
4
|
1
|
2
|
1
|
1
|
250×160
|
2.5
|
5
|
1
|
2
|
1
|
2
|
400×250
|
3.5
|
7
|
1
|
2.5
|
1
|
2
|
630×400
|
4.5
|
9
|
1.5
|
3
|
1
|
2.5
|
1000×630
|
6
|
12
|
2.5
|
5
|
1.5
|
5
|