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Q345 steel is a low alloy high-strength structural steel commonly used in fields such as construction, bridges, aerospace, mechanical manufacturing, petroleum drilling, chemical equipment, etc. It is a commonly used steel in China, using the grade Q345 and complying with the national standard GB/T 1591-2008.

Q345 steel is a low alloy high-strength structural steel commonly used in fields such as construction, bridges, aerospace, mechanical manufacturing, petroleum drilling, chemical equipment, etc. It is a commonly used steel in China, using the grade Q345 and complying with the national standard GB/T 1591-2008.