详细说明
'功能用黑色花岗岩制造，坚硬、耐磨平面度符合德国标准 DIN876/00要求垂直度符合德国标准 DIN875要求木盒包装
Length of Size Thickness Accuracy 代码号
| 200 x 150mm | 50mm | 00 | 639-01-0 |
| 300 x 200mm | 50mm | 00 | 639-02-0 |
| 400 x 250mm | 50mm | 00 | 639-03-0 |
| 500 x 300mm | 60mm | 00 | 639-04-0 |
| 600 x 400mm | 70mm | 00 | 639-05-0 |
| 800 x 500mm | 80mm | 00 | 639-06-0 |
| 1000 x 600mm | 100mm | 00 | 639-07-0 |
'