Do you want any logistics service, then call us: +86-371-86151827
Export SMA490CW oil derricks used steel H beam section steel
Export SMA490CW oil derricks used steel H beam section steel
- Comments: The toughness index of Q345B steel should be tested by impact test at 20 ℃. Although the strength of Q345B steel and Q345A steel are the same, the S / P control of Q345B steel is more strict, and the ambient temperatures of SMA490CW oil derricks used stee
Ask for the instant quotation