Korea Granite square
The main mineral composition of granite is pyroxene, plagioclase, a small amount of olivine, biotite and trace magnetite, black color, precise structure, after millions of years of aging, uniform texture, good stability, high strength, high hardness, can maintain high precision under heavy load.
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Product Description
The main mineral composition of granite is pyroxene, plagioclase, a small amount of olivine, biotite and trace magnetite, black color, precise structure, after millions of years of aging, uniform texture, good stability, high strength, high hardness, can maintain high precision under heavy load. Suitable for industrial production and laboratory measurement work.
Technical parameters
| Specifications (Mm) |
Measurement of verticality of facing base plane | Measurement of surface flatness or straightness | Flatness or straightness of base surface | |||
| Accuracy class (μm) | ||||||
| 00 | 0 | 00 | 0 | 00 | 0 | |
| 100 × 63 | 2 | 4 | 1 | 1 | 1 | 1 |
| 160 × 100 | 2 | 4 | 1 | 2 | 1 | 1 |
| 250 × 160 | 2.5 | 5 | 1 | 2 | 1 | 2 |
| 400 × 250 | 3.5 | 7 | 1 | 2.5 | 1 | 2 |
| 630 × 400 | 4.5 | 9 | 1.5 | 3 | 1 | 2.5 |
| 800 × 500 | 5 | 10 | 2 | 4 | 1.2 | 3 |
| 1000 × 630 | 6 | 12 | 2.5 | 5 | 1.5 | 3 |
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