Main steel grade Carries out the standard
A572Gr50,A573,A633
Q235GJ,Q345GJ,Q390GJ,Q420GJ,Q460GJ

GC-400,GC-490
SN400A,SN400B,SN400C,SN490B,SN490C
275(D,E,EZ),355(D,E,EM)
355EMZ,450(EM,EMZ) ASTM

YB/T SPECIAL- CONDITION
JIS G 3136
BS7191
GB/T19879

Main use Uses in manufacturing the industry and the civil building prop and load-bearing Liang and so on.

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