GB/T 31946
GB/T 31946 (水电站压力钢管用钢板)· GB (中国) · 9 种材料
| 名称 | 材料组别 | |
|---|---|---|
| Q345SC | 结构钢 | chevron_right |
| Q345SD | 结构钢 | chevron_right |
| Q345SE | 结构钢 | chevron_right |
| Q490SD | 结构钢 | chevron_right |
| Q490SE | 结构钢 | chevron_right |
| Q560SD | 结构钢 | chevron_right |
| Q560SE | 结构钢 | chevron_right |
| Q690SD | 结构钢 | chevron_right |
| Q690SE | 结构钢 | chevron_right |