GBT700 Q235D Carbon and Low-alloy High-streng...
GBT700 Q235C Carbon and Low-alloy High-streng...
GBT700 Q235A Carbon and Low-alloy High-streng...
GBT700 Q235B Carbon and Low-alloy High-streng...
GBT700 Q275 Carbon and Low-alloy High-strengt...
GBT1591 Q345A Carbon and Low-alloy High-stren...
[[TD-Dialing]]