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Steel Manufacturer & Supplier
in China

Factory-direct structural and coated steel for construction projects worldwide — coils, roofing sheets, tubes, sections and rebar, engineered to GB, ASTM, JIS and EN standards.

One-Stop Steel Supply Chain

We are a trade-service company focused on the supply chain management of steel and construction materials. From one inquiry you get matched, quality-controlled steel across every category your project needs — plates, pipes, wires, bars, profiles and roofing — in a single order, a single shipment, with a single point of contact.

Our Steel Coils & Sheets

Hot-rolled, cold-rolled and coated coils in full specification ranges — the raw backbone of every steel project.

Hot-Rolled Coil

  • Thickness: 0.8–25 mm
  • Width: 600–2200 mm
  • Grades: Q235B / Q355B / S235JR / A36…
  • Use: structures, bridges, machinery

Cold-Rolled Coil

  • Thickness: 0.10–3.0 mm
  • Width: 1000 / 1200 / 1250 mm
  • Grades: DC01 / SPCC / SAE1008…
  • Use: appliances, auto, construction

Galvanized (GI)

  • Thickness: 0.10–4.0 mm
  • Coating: 20–600 g/m²
  • Grades: DX51D / SGCC / S350GD…
  • Use: roofing, scaffolding, ducts

Galvalume (GL)

  • Thickness: 0.20–3.0 mm
  • Coating: 55% Al-Zn alloy
  • Use: roofing, cladding, solar mounts

ZAM Coated

  • Thickness: 0.30–4.0 mm
  • Edge: 5–10× GI rust resistance, self-healing
  • Use: harsh environments

Prepainted (PPGI/PPGL)

  • Paint: PE / SMP / HDP / PVDF (5–30 yrs)
  • Finishes: wood, brick, matte, RAL colors
  • Use: roofing, cladding, appliances

Our Sections, Tubes & Roofing

Finished structural steel, ready for fabrication and site installation.

Corrugated Roofing Sheet

  • Thickness: 0.13–0.80 mm
  • Profiles: 20+ YX models
  • Use: industrial & civil roofing

Steel Tubes

  • Round: DN15–DN200, galvanized
  • Rectangular: 10×20 – 200×300 mm
  • Square: 15×15 – 400×400 mm

H / I / U Beams

  • Grades: Q235B / Q355B, 12 m lengths
  • Use: buildings, bridges, infrastructure

Angle Bar & Flat Bar

  • Angle: 30×30 – 200×125 mm
  • Use: frames, towers, brackets

Rebar & Sheet Pile

  • Rebar: Φ6–Φ50, HRB400/500
  • Sheet pile: U / Z profiles

Wire & Fittings

  • Wire: galvanized, barbed
  • Fittings: elbows, tees, flanges
  • Scaffolding & steel supports

Our Services

From material matching to after-sales — one partner for your whole steel package.

Product Matching

Send your project list; we match grades, specs and mills.

Customization

Sizes, coatings, colors and packaging to your spec.

Quality Control

Mill test certificates and pre-shipment inspection.

Export Logistics

Export packing, documentation, shipment to your port.

About QSLR Building

Exporting steel raw materials and construction materials since 2020, we serve buyers across Southeast Asia, the Middle East, South America and Africa — creating value by saving customers cost while delivering quality products.

Mill-Direct, Fewer Middlemen

We work directly with mills and processors — from raw coil to finished sections. Fewer intermediate links means better pricing and tighter quality control for your project. Mixed-product containers welcome: consolidate your full steel list into one shipment.

Standards & Compliance

All products controlled to international standards — GB, ASTM, JIS, EN. Mill test certificates available with every order, so your engineers can specify with confidence.

How It Works

1
Send Inquiry

WhatsApp your specs or project list.

2
Get Quote

Structured quotation within 24 hours.

3
Production & QC

Mill-direct with quality control.

4
Delivery

Export packing, shipped to your port.

FAQ

What is your minimum order quantity?

Coils by the ton, sections and tubes by bundle or container. Tell us your project size on WhatsApp for the most economical quantity.

Which standards do you follow?

GB, ASTM, JIS and EN — grades like Q235B/Q355B, DX51D, SGCC, HRB400. Mill test certificates provided.

Can you customize sizes and coatings?

Yes — widths, thicknesses, zinc coatings, paint systems and RAL colors to your spec.

How fast is your quotation?

Usually within 24 hours on working days after we receive your specs.

Do you ship internationally?

Yes — Southeast Asia, Middle East, South America, Africa, with full export documentation.

Send Your Steel List — Get a Quote Within 24 Hours

One message on WhatsApp is enough to start.

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