| 1 |
00:00 268 |
| 2 |
00:00 255 |
| 3 |
00:00 298 |
| 4 |
00:00 326 |
| 5 |
00:00 261 |
| 6 |
00:00 271 |
| 7 |
00:00 254 |
| 8 |
00:00 242 |
| 9 |
00:00 244 |
| 10 |
00:00 253 |
| 11 |
00:00 218 |
| 12 |
00:00 221 |
| 13 |
00:00 225 |
| 14 |
00:00 205 |
| 15 |
00:00 287 |
金属材料洛氏硬度试验