Granite ruler
Welding Wonders Forging Excellence Together
PRODUCTS DETAIL
Used for measuring straightness and flatness.
Granite precision measuring tools are made from high-quality “Jinan green” stone through mechanical processing and manual precision grinding. High precision, no deformation, good stability, and long lifespan.
| 规格 Dimension |
工作面直线度或平面度Straightness or flatness of the working surface | 工作面间平行度Parallelism between working faces | 侧面对工作面垂直度Squareness between working surface and surface | |||
| 精度等级Precision grade（μm） | ||||||
| 00级 | 0级 | 00级 | 0级 | 00级 | 0级 | |
| 400×60×25 | 1.6 | 2.6 | 2.4 | 3.9 | 8.0 | 13 |
| 630×100×35 | 2.1 | 3.5 | 3.2 | 5.3 | 10.5 | 18 |
| 1000×160×50 | 3.0 | 5.0 | 4.5 | 7.5 | 15 | 25 |
| 1600×250×80 | 4.4 | 7.4 | 6.6 | 11.1 | 22 | 37 |
| 2000×300×100 | 5.4 | 10.0 | 8.1 | 13.5 | 27 | 45 |
