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Bridge type straight edge standard JB/T7977-99 manufacturing, material HT250.Face using the process of scraping,be used to measure the straightness and flatness of the workpiece,use temperature(20 plus and minus 5 degrees),for machine tool guide,inspecting precision for workface,geometry measure precision,precision component measurement,scraping processing technology and so on.Is the benchmark of precision measurement.
As a manufacturer,we will supply you the most favourable price and top-quality service.Your inquiry is highly appreciated.Welcome to order.
|
Type(mm) |
Flatness & straightness of measuring surface |
||
|
Precision Grade (µm) |
|||
|
0 |
1 |
2 |
|
|
500×50 |
3 |
6 |
12 |
|
750×50 |
4 |
8 |
15 |
|
1000×50 |
|
10 |
20 |
|
1500×70 |
|
15 |
30 |
|
2000×80 |
|
18 |
36 |
|
2500×90 |
|
22 |
44 |
|
3000×100 |
|
|
52 |
|
3500×100 |
|
|
60 |
|
4000×100 |
|
|
68 |
|
5000×110 |
|
|
84 |
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