Product Catalogue · Factory-Direct Bulk Supply
SQUARE AND RECTANGULAR STEEL TUBE
Factory-direct bulk steel supply from our Jinan yard -- 2,800+ specifications in stock, ready for immediate container loading.
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Showing 1-12 of 279 products
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GALVANIZED SQUARE AND RECTANGULAR STEEL TUBE
Q235B Q345B Pre Galvanized Square Steel Tube Factory Direct Supplier
Q235B Q345B Pre Galvanized Square Steel Tube, GB Standard, ERW welded, customized side length and wall thickness — uniform zinc...
Aug 11, 2026 View details -
GALVANIZED SQUARE AND RECTANGULAR STEEL TUBE
Q235 Q345 Galvanized Square Rectangular Steel Tube Factory Direct Supplier
Q235 Q345 Galvanized Square and Rectangular Steel Tube, GB/T 6728, side length 20–500 mm, wall thickness 0.3–100 mm — hot...
Aug 11, 2026 View details -
GALVANIZED SQUARE AND RECTANGULAR STEEL TUBE
ASTM A500 Gr.B Rectangular Steel Tube 1-30mm WT Factory Direct Supplier
ASTM A500 Gr.B Rectangular Steel Tube, 15mm×20mm–700mm×800mm, wall thickness 1–30 mm — available in ERW welded and seamless processes with...
Aug 11, 2026 View details -
GALVANIZED SQUARE AND RECTANGULAR STEEL TUBE
ASTM A500 GR.B Rectangular Steel Tube 1-30mm Wall Factory Direct Supplier
ASTM A500 GR.B Rectangular Steel Tube, wall thickness 1–30 mm, sizes 15×20 to 700×800 mm — ERW welded construction with...
Aug 11, 2026 View details -
GALVANIZED SQUARE AND RECTANGULAR STEEL TUBE
ASTM A500 Galvanized Square Steel Tube 19-800mm Factory Direct Supplier
ASTM A500 Galvanized Square Steel Tube, 19×19–800×800 mm, wall thickness 1–30 mm, ERW welded and seamless options — hot-dip galvanized...
Aug 11, 2026 View details -
GALVANIZED SQUARE AND RECTANGULAR STEEL TUBE
Q235B Q345B Galvanized Rectangular Steel Tube Factory Direct ASTM Standard
Q235B Q345B Galvanized Rectangular Steel Tube, ASTM standard, wall thickness 0.5–200 mm, lengths up to 12 m — hot-dip zinc...
Aug 11, 2026 View details -
GALVANIZED SQUARE AND RECTANGULAR STEEL TUBE
Q235 Q345 Hot Dipped Galvanized Rectangular Steel Tube ASTM Supplier
Q235 Q345 Hot Dipped Galvanized Rectangular Steel Tube, ASTM standard, wall thickness 0.5–200 mm, length 6 m / 6.4 m...
Aug 11, 2026 View details -
GALVANIZED SQUARE AND RECTANGULAR STEEL TUBE
Q235 Q345 Galvanized Square Rectangular Steel Tube Supplier
Q235 Q345 Galvanized Square Rectangular Steel Tube, ASTM, wall thickness 0.5–200 mm, length 12 m — hot rolled and cold...
Aug 11, 2026 View details -
GALVANIZED SQUARE AND RECTANGULAR STEEL TUBE
Q235 Galvanized Square Steel Tube 20×20-150x150mm Factory Direct Supplier
Q235 Galvanized Square Steel Tube, 20×20–150×150 mm, length 1–12 m — hot-rolled carbon steel with zinc coating for anti-corrosion protection...
Aug 11, 2026 View details -
GALVANIZED SQUARE AND RECTANGULAR STEEL TUBE
Q195-Q690 Galvanized Square Rectangular Steel Tube Supplier
Q195–Q690 Galvanized Square and Rectangular Steel Tube, 12×12–800×800 mm square / 10×20–800×1000 mm rectangular, wall thickness 1–50 mm, length 1–12...
Aug 11, 2026 View details -
GALVANIZED SQUARE AND RECTANGULAR STEEL TUBE
Gr.B S355 Galvanized Square Rectangular Steel Tube 19-800mm Factory Direct
Gr.B, S235, S275, S355, STK400 Galvanized Square and Rectangular Steel Tube, ASTM A500 / GB/T3091, 19×19–800×800 mm, wall thickness 1–30...
Aug 11, 2026 View details -
GALVANIZED SQUARE AND RECTANGULAR STEEL TUBE
Gr.B S235 S355 Galvanized Square Steel Tube 19-800mm Factory Direct
Gr.B S235 S355 Galvanized Square Steel Tube, ASTM A500, 19×19–800×800 mm, 1–30 mm WT — ERW welded process delivers cost-efficient...
Aug 11, 2026 View details
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