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花崗石（大理石）平尺的行業(yè)標(biāo)準(zhǔn)及用途：根據(jù)機(jī)械行業(yè)標(biāo)準(zhǔn)： JB/T7878-1999 制造。用于直線度和平面度測(cè)量。
花崗石（大理石）平尺的規(guī)格型號(hào)：
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規(guī)格（ mm ） |
工作面直線或平面度 |
工作面間平行度 |
側(cè)面對(duì)工作面垂直度 |
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精度等級(jí) um |
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00 |
0 |
00 |
0 |
00 |
0 |
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500 × 100 × 40 |
1.6 |
2.6 |
2.4 |
3.9 |
8.0 |
13.0 |
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750 × 100 × 40 |
2.1 |
3.5 |
3.2 |
5.3 |
11.0 |
16.0 |
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1000 × 120 × 40 |
3.0 |
5.0 |
4.5 |
7.5 |
15.0 |
25.0 |
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1000 × 120 × 60 |
3.2 |
5.3 |
4.9 |
7.9 |
15.6 |
25.8 |
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1200 × 120 × 40 |
3.69 |
6.2 |
5.4 |
8.5 |
16.4 |
26.5 |
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1200 × 120 × 60 |
3.69 |
6.2 |
5.4 |
8.5 |
16.4 |
26.5 |
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1500 × 150 × 60 |
4.2 |
7.2 |
6.5 |
11.0 |
21.5 |
36.2 |
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1500 × 150 × 80 |
4.2 |
7.2 |
6.5 |
11.0 |
21.5 |
36.2 |
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1600 × 150 × 60 |
4.4 |
7.4 |
6.6 |
11.1 |
22.0 |
37.0 |
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1600 × 150 × 80 |
4.4 |
7.4 |
6.6 |
11.1 |
22.0 |
37.0 |
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2000 × 200 × 80 |
5.4 |
10.0 |
8.1 |
13.5 |
27.0 |
45.0 |
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2500 × 200 × 80 |
6.0 |
14.3 |
10.2 |
13.8 |
35.0 |
69.6 |
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3000 × 300 × 100 |
8.0 |
16.0 |
12.0 |
14.0 |
42.0 |
81.2 |
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