Square Steel Tube
Grades Q235B / Q345B / S235JR
Spec 20×20 – 200×200 mm · Wall 1.2–8 mm
Cold-formed square hollow sections with square-cut ends.
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Rectangular Steel Tube
Grades Q235B / S355JR
Spec 20×40 – 100×200 mm · Wall 1.2–8 mm
Rectangular hollow sections for frames, gates and machinery.
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Galvanized Square Tube
Grades Q235B / DX51D
Spec 20×20 – 150×150 mm · Wall 1.2–5 mm
Pre-galvanized square tube with corrosion-resistant finish.
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