GB 3423
GB 3423 (金刚石岩芯钻探用无缝钢管 )· GB (中国) · 12 种材料
| 名称 | 材料组别 | |
|---|---|---|
| 27MnMoVB | 结构钢 | chevron_right |
| 40Mn2 | 结构钢 | chevron_right |
| 40Mn2Mo | 结构钢 | chevron_right |
| 40Mn2Si | 结构钢 | chevron_right |
| 40MnVB | 结构钢 | chevron_right |
| 45MnB | 结构钢 | chevron_right |
| 45MnMoB | 结构钢 | chevron_right |
| 50Mn | 结构钢 | chevron_right |
| A00402 | 结构钢 | chevron_right |
| A71452 | 结构钢 | chevron_right |
| A73402 | 结构钢 | chevron_right |
| U21502 | 结构钢 | chevron_right |