Inspection Ruler
Product Description
Granite Square Ruler
Product Speciality:
- Made of high quality Jinanqing Natural Granite Stone
- High precision and high stability.
- No rust and anticorrosion.
- Non magnetization.
- Good abrasion resistance.
Physical Property of Jinan Black Granite:
S.G: 2970-3070kgs/m 3
Compressive strength: 245-254N/mm 2
Elastic modulus: 1.27-1.47N/mm 2
Lindar expansion coefficient: 4.61 × 10 -6 /°C
Water absorptivity: <0.13%
Shore scleroscope hardness: more than Hs70
Place of Origin：Hebei
Warranty：1 year
Customized support：OEM
Brand Name：Storan
Model Number：1003
Product name：marble square ruler
Material：Granite or marble
Size：200-1000mm
Color：black
Package：plywood box
Hardness：HS70
Working Surface：20±5℃
Port：tianjin
Packaging Details：plywood box
Supply Ability:1200 Piece/ day
Product Parameter
|
Typemm) |
Squareness between measuring surface and datum surface |
Flatness and straightness of measuring surface |
Flatness and straightness of datumsurface |
|||
|
Precision Grade (μm) |
||||||
|
00 |
0 |
00 |
0 |
00 |
0 |
|
|
200*200*50 |
2 |
4 |
1 |
1 |
1 |
1 |
|
300*300*50 |
2 |
4 |
1 |
2 |
1 |
1 |
|
400*400*50 |
2.5 |
5 |
1 |
2 |
1 |
2 |
|
500*500*50 |
3.5 |
7 |
1 |
2.5 |
1 |
2 |
|
600*600*60 |
4.5 |
9 |
1.5 |
3 |
1 |
2.5 |
|
800*800*70 |
6 |
12 |
2.5 |
5 |
1.5 |
5 |
Product Detail Drawing
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