Application engineering · 2,800+ specifications
Industry steel
solutions built for
your application
Super high-rise towers, glass curtain walls, machinery, automotive, energy infrastructure and highway & railway projects -- each sector receives a matched grade, tolerance and surface package engineered by our technical team and produced on three dedicated lines.
Downstream industries
Six sectors,
six engineered packages
Select your industry to jump directly to the recommended profiles, steel grades, tolerance class and surface treatment we supply for that application.
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01
Super High-Rise Buildings
Heavy-wall box columns, Q460-Q690 high-strength tube and welded built-up sections for core structures.
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02
Glass Curtain Wall
Patented sharp-corner tube with true 90° edges -- flush glazing lines, minimal shimming, tight straightness.
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03
Machinery Manufacturing
Precision cold-drawn and seamless profiles with laser-cut ends, ready for robotic welding cells.
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04
Automotive Industry
T700 and high-strength thin-wall tube for chassis, trailer frames, seat structures and body-in-white parts.
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05
Energy & Infrastructure
JCOE / SSAW large-diameter pipe, solar mounting profiles and galvanized structures up to 600 g/m².
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06
Highway & Railway
Guardrail posts, bridge box girders, catenary masts and tunnel supports with third-party inspection.
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Matched solution packages
What we supply for each application
Solution 01
Super High-Rise Buildings
Box columns and mega-frame members carry extreme axial loads. We supply heavy-wall square and rectangular tube up to 800×800 mm with 40 mm wall, plus welded built-up sections fabricated to your shop drawings with full ultrasonic weld inspection.
- Profiles
- SHS / RHS box column, H-beam
- Grades
- Q355B · Q460C · Q690 · S355J2H
- Wall thickness
- 8 - 40 mm
- Value add
- Bevelling · UT report · MTC
Solution 02
Glass Curtain Wall Patented
Standard cold-formed tube leaves a rounded corner radius that forces packers behind every glazing bracket. Our patented sharp-corner rectangular tube delivers a near-perfect 90° external corner, so unitised panels seat flush and installation time drops on site.
- Profiles
- Sharp-corner RHS / SHS mullion
- Grades
- Q235B · Q355B · S355J2H
- Size range
- 20×10 - 800×600 mm
- Finish
- Hot-dip galvanized · primer coated
Solution 03
Machinery Manufacturing
Equipment builders need repeatable dimensions batch after batch. We hold tight straightness and wall tolerance, then finish with pipe laser cutting, notching and bevelling so parts arrive ready for jigged robotic welding -- no rework in your cell.
- Profiles
- Seamless & precision welded tube
- Grades
- 20# · 45# · Q345B · stainless series
- Processing
- Laser cutting · CNC machining
- Batch
- Drawing-based, mixed container accepted
Solution 04
Automotive Industry
Lightweighting demands thin walls without losing strength. T700 and high-strength low-alloy tube let trailer, chassis and seat-frame builders cut mass while keeping crash performance -- supported by in-house tensile, flattening and chemical testing on every heat.
- Profiles
- Thin-wall RHS · round · special shapes
- Grades
- T700 · Q460 · Q550 · Q690
- Wall thickness
- 0.8 - 6 mm
- Testing
- Physical & chemical lab on site
Solution 05
Energy & Infrastructure
Piling, penstocks, transmission towers and solar tracker frames all share one requirement: corrosion life. We combine JCOE and SSAW large-diameter pipe with hot-dip galvanizing from 60 to 600 g/m², matched to your site's exposure category.
- Profiles
- JCOE · SSAW · ERW pipe, C/Z purlin
- Grades
- Q235B · Q355B · X52 equivalent
- Diameter
- OD 21.3 - 3,000 mm
- Coating
- Zinc 60 - 600 g/m² · 3PE option
Solution 06
Highway & Railway
Public infrastructure runs on documentation as much as on steel. Every consignment ships with mill test certificates, dimensional reports and optional SGS or BV third-party inspection -- accepted by government tender boards across 50+ countries.
- Profiles
- Guardrail post · box girder plate · H-beam
- Grades
- Q235B · Q355B · Q420
- Standards
- EN 10219 · AS1163 · GB/T 11263
- Documents
- MTC · SGS / BV report
Materials & grades
Applicable steel categories
Grades Q195-Q690, T700, 20#, 45#, plus stainless and alloy series. Non-standard sizes and drawing-based profiles are produced on request.
| Category | Typical grades | Size range | Standard | Matched industry |
|---|---|---|---|---|
| Square & rectangular tube | Q195 - Q690 · S355J2H | 10×10 - 800×800 mm · 0.8 - 40 mm | EN 10219 / 10210 · ASTM A500 | High-rise · curtain wall |
| Sharp-corner RHS Patented | Q355B · S355J2H | 20×10 - 800×600 mm · 1.0 - 40 mm | EN 10219 · GB/T 6728 | Glass curtain wall |
| Round pipe -- ERW / SSAW / JCOE | Q235B · 20# · 45# | OD 21.3 - 3,000 mm · 1.0 - 40 mm | JIS G3466 · AS1163 | Energy · infrastructure |
| Steel plate & coil | Q235 / Q345 · SS400 | Width 1,000 - 2,500 mm · 1.5 - 60 mm | GB · ASTM | Bridge · machinery |
| Section steel -- H / I / U / C / angle | Q235B · Q355B | Height 50 - 900 mm · 3.0 - 32 mm | GB/T 11263 | Highway · railway |
| Galvanized tube | Zinc 60 - 600 g/m² | 15 - 600 mm · 1.0 - 12 mm | EN 10219 · ASTM A500 | Solar · agriculture · fencing |
All parameters are indicative. Full mill test certificates, third-party inspection (SGS / BV) and drawing-based customization are available on request.
Value for your project
Engineering support that
protects your schedule
A dedicated technical contact reviews your drawings, confirms grade equivalence and issues a production plan before the order is released.
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41
Invention patents
Including sharp-corner rectangular tube, a domestic and international first.
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2,800+
Specifications
One supplier covers the full bill of materials -- fewer POs, fewer shipments.
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3
Production lines
In-house physical & chemical laboratories give real-time quality control.
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50+
Export countries
Door-to-door logistics, export packing and full customs documentation.
Proof of delivery
Factory visits, inspections
and global partnerships
Buyers from Europe, North America, India, Southeast Asia and the Middle East audit our plant, witness loading and sign off inspection reports on site.
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Case · Southeast Asia
Mixed-use tower, 58 floors
3,200 t of Q460C heavy-wall box column supplied in 14 shipments over 7 months, all with UT reports.
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Case · Middle East
Airport curtain wall package
Sharp-corner RHS mullions cut to length, reducing on-site shimming and saving three installation weeks.
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Case · Europe
Solar tracker framework
Galvanized tube at 275 g/m² with EN 10219 certification, delivered door-to-door to two EU ports.
Custom solution request
Send your drawings --
get a matched package
Share your industry, specification list or shop drawings. Our international engineering team replies with recommended grades, tolerances, pricing and lead time within one working day.
- Grade equivalence review
- Non-standard size production
- Cutting, bevelling & packing
- Door-to-door logistics
Request your solution
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