GB/T 32957
GB/T 32957 (Cold-drawn or cold-rolled precision inside diameter seamless steel tubes for hydraulic and pneumatic system service)· GB (China) · 8 materials
| Designation | Material group | |
|---|---|---|
| 20 | Structural and constructional steels | chevron_right |
| 25Mn | Structural and constructional steels | chevron_right |
| 27SiMn | Structural and constructional steels | chevron_right |
| 45 | Structural and constructional steels | chevron_right |
| Q345B | Structural and constructional steels | chevron_right |
| Q345C | Structural and constructional steels | chevron_right |
| Q345D | Structural and constructional steels | chevron_right |
| Q345E | Structural and constructional steels | chevron_right |