Name: SQUARE STEEL PIPE (HOLLOW SECTION)Steel grade: Q195,Q235B,Q345B,X42, X52 ,X60,X70,H40,J55,K55,S235JRH,S275JOH,S355JOH,etc.Outer diameter: 20×20-300×300mmWall thickness: 1.2~14 mmLength: 6m,12m ... ...
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