Basic Design‌
Shape‌: Hollow rectangular/square tubes made by welding 4 steel plates
Sizes‌: 200mm–2000mm width/height, 6–40mm wall thickness
Key Feature‌: High strength against twisting and bending

‌Main Advantages‌
‌Stronger‌
- 2x better at handling twisting forces vs I-beams
- Carries 30% more weight than same-size H-beams
‌Long-Lasting‌
- Full welding protects inside from rust
- Special coatings (3-layer system) for 50+ year use
‌Easy to Build‌
- Pre-made sections connect quickly with bolts
- Fits tight spaces in bridges & tall buildings
‌Common Uses‌
Bridge support beams
High-rise building frames
Factory roof structures
Power plant equipment platforms

‌Technical Specs‌
Material: ASTM A572 Gr.50 steel (or EN 10025 S355)
Surface: Hot-dip galvanized or painted (ISO 12944)
Testing: Passes EN 1090-2 Class 4 quality checks
Custom: Can add holes/openings for pipes/wires

Product name	Steel Box-Section Structural Members
Material	ASTM; EN; GB;
Surface	Painted; HDG

OEM service available.

A dedicated team of fast response;

EN1090 & AISC & CWB & JIS Certificated Quality;

Full production line for customized products;

Close to Sea port, Convenient for visit and delivery;

150000M2 Manufacturing Area capable to take large volume

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