GB/T 34199
GB/T 34199 (电气化铁路接触网支柱用热轧H型钢)· GB (中国) · 19 种材料
| 名称 | 材料组别 | |
|---|---|---|
| Q235B | 结构钢 | chevron_right |
| Q235C | 结构钢 | chevron_right |
| Q235D | 结构钢 | chevron_right |
| Q235E | 结构钢 | chevron_right |
| Q275B | 结构钢 | chevron_right |
| Q275C | 结构钢 | chevron_right |
| Q275D | 结构钢 | chevron_right |
| Q275E | 结构钢 | chevron_right |
| Q355B | 结构钢 | chevron_right |
| Q355C | 结构钢 | chevron_right |
| Q355D | 结构钢 | chevron_right |
| Q355E | 结构钢 | chevron_right |
| Q390B | 结构钢 | chevron_right |
| Q390C | 结构钢 | chevron_right |
| Q390D | 结构钢 | chevron_right |
| Q390E | 结构钢 | chevron_right |
| Q420B | 结构钢 | chevron_right |
| Q420C | 结构钢 | chevron_right |
| Q420D | 结构钢 | chevron_right |