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GB/T700 GB/T3274 Q235B mild steel plates/carbon steel Q235B mild steel plates/carbon steel plates have 2 standards at present:GB/T700 and GB/T3274. GB/T3274 is new version, but a lot of mills still conduct GB/T700 at present. Q235B mild steel plates have certain elongation, strength, good toughness and
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gb t1591 q390c steel specs China Buy A36 Steel Plate gb t3274 q390c steel data sheet rh mediadesign.nl. gb t3274 q345d exporter gezondheidopnummer1.nl. Q345D steel plate belongs to low alloy high strength steel under standard GB/T3274 or GB/T1591. P < 0.030% and S < 0.025% are executed for Q345D steel plates, and the Q345D steel plate is subjected to impact test at 20.