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Angle Square Ruler Measuring Tool
On inspection of verticality and parallelism as absolute 90° measuring.
Our granite measuring devices and granite mechanical components are made of high qualityJinan Blackgranite.Due to their high precision,long duration,good stability and corrosion resistance,they have been more and more used in product inspection of modern industy and such scientific areas as mechanicalaerospace and scientific researches
The "GOLD STONE"brand of granite measuring tools have the following characteristics:
1 . High precision reliable stability resistant to deform and guaranteed accuracy under normal ambient temperature.
2 .No-rust and anticorrosion.
3 . Wear resistance long service life. Square rulers
4 . Any cutting or scraching for working surface does not bring about roughedgeswhich might influence its measuring precision.
5 . Non magnetization.
6 . Glossy surface without sluggishness when the workpieces or tools are moving on it.
Granite Squares Square rulers
Granite Squares Square rulers
Granite Squares Square rulers
The accuacy we can follow :
Square rulers
TYPE(mm) |
Squareness between abjacent measuring surfaces |
Straightness of measuring surface |
Parallelism between opposite measuring surface |
|||
Precision grade(μm) | ||||||
00 |
0 |
00 |
0 |
00 |
0 |
|
160x160 |
2 |
4 |
0.8 |
1.7 |
2 |
4 |
200x200 |
2 |
4 |
0.9 |
1.8 |
2 |
4 |
250x250 |
2.2 |
4.5 |
1 |
2 |
2.2 |
4.5 |
315x315 |
2.6 |
5.2 |
1.1 |
2.3 |
2.6 |
5.5 |
400x400 |
3 |
6 |
1.3 |
2.6 |
3 |
6 |
500x500 |
3.5 |
7 |
1.5 |
3 |
3.5 |
7 |
On inspection of verticality and parallelism as well as absolure 90 time measuring.
Granite Squares
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