API 5DP
API 5DP (钻杆)· API (美国) · 8 种材料
| 名称 | 材料组别 | |
|---|---|---|
| Grade E | 结构钢 | chevron_right |
| Grade G | 结构钢 | chevron_right |
| Grade S | 结构钢 | chevron_right |
| Grade SS105 | 结构钢 | chevron_right |
| Grade SS75 | 结构钢 | chevron_right |
| Grade SS95 | 结构钢 | chevron_right |
| Grade V | 结构钢 | chevron_right |
| Grade X | 结构钢 | chevron_right |