Granite Squares Measuring Angle Tool
Specifications
Measuring angle tool1.Granite Straight Edges Meterial:Jinan Black
2.For inspecting the straightnesss and flatne
Granite Squares Measuring angle tool
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.
Measuring angle tool
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. Measuring angle tool
3 Wear resistance long service life.
4 Any cutting or scraching for working surface does not bring about roughedgeswhich might influence its measuring precision. Measuring angle tool
5 Non magnetization.
6 Glossy surface without sluggishness when the workpieces or tools are moving on it.
Physical Property ofJi Nan Black Granite:
| Phisical Property | Reference Value |
| Specific Gravity | 2970-3070kg/m3 |
| Compressive Strength | 245-254Mpa |
| Elastic Modulus | 30-50Gpa |
| Linear Expansion Coefficient | 4.61x10-6/0C |
| Water Absorptivity | ≤0.07 |
| Shore Hardness | Above 70Hs |
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