| 1 |
00:00 339 |
| 2 |
00:00 344 |
| 3 |
00:00 395 |
| 4 |
00:00 409 |
| 5 |
00:00 344 |
| 6 |
00:00 345 |
| 7 |
00:00 343 |
| 8 |
00:00 315 |
| 9 |
00:00 303 |
| 10 |
00:00 348 |
| 11 |
00:00 292 |
| 12 |
00:00 292 |
| 13 |
00:00 301 |
| 14 |
00:00 273 |
| 15 |
00:00 376 |
金属材料洛氏硬度试验