◆ SOURCE MANUFACTURER OF SPACE FRAMES

Every Long-Span Structure,
Direct from the Source Factory

Xuzhou Purun Steel Structure Co., Ltd. — one-stop source manufacturer of bolt-ball space frames, tube trusses, grid shells and roofing systems, from detailing and fabrication to erection guidance.
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40,000㎡Production Base
15Production Lines
200 tDaily Capacity
31Global Projects
Welding lines Bolt-ball forging

Space Frame Manufacturing with Source-Factory Pricing & Quality

Based in Xuzhou — the heartland of China's steel structure industry — Purun operates a 40,000㎡ production base with 15 space frame lines. Every process from incoming inspection, CNC cutting, bolt-ball forging, welding and painting to shipping is fully in-house. Products have been delivered to Dubai, Saudi Arabia, Russia, Switzerland, New Zealand and 10+ markets.
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Direct from FactoryNo middlemen — better price at equal quality
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One-Stop ServiceDetailing · fabrication · erection guidance
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Export ReadyBidding & customs documents prepared
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ISO9001 CertifiedFull traceability, 100% outgoing inspection
Products & Services

Products & Services

Four product lines covering all long-span scenarios

Bolt-ball space frame
PRODUCT 01

Bolt-Ball Space Frame

Product 01

Square/triangular pyramid double-layer grids — large span, light weight, fast erection. First choice for coal sheds, stadiums and canopies.
Tube truss
PRODUCT 02

Tube Truss

Product 02

CHS/RHS welded trusses with smooth lines for long-span roofs, corridors and special facades.
Grid shell
PRODUCT 03

Grid Shell & Dome

Product 03

Cylindrical, spherical and free-form shells — proven solution for 80,000㎡ coal sheds and dome venues.
Roofing system
PRODUCT 04

Roofing & Membrane

Product 04

Al-Mg-Mn panels, skylights, PTFE/PVDF membranes — structure and roofing delivered as one package.
Flagship Projects

Flagship Projects

31 projects worldwide · Intl 10 / Coal 10 / Venue 5 / Industry 3 / Special 3

Coal storage sheds
Coal Shed · 300,000㎡

Tangshan Caofeidian Coal Storage Sheds

Clear span 118m · Height 58m · 556m long

Large enclosed coal shed complex for Shougang Caofeidian — one of Purun's largest projects.
Guangdong stadium
Venue · Provincial Key Project

Guangdong Large Stadium Special-Shaped Frame

Ellipse 188m × 79m × 38m

Provincial key project demonstrating Purun's complex curved-surface detailing capability.
Tibet library
Public · High-Altitude Delivery

Mainling City Library, Tibet

Altitude 3,700m · 45-day delivery

On-time delivery at extreme altitude proves Purun's site organization strength.
Dubai skylight
International · Middle East

Dubai Textile City Skylight

Glass skylight · Full scaffolding

Landmark glass skylight with double-layer bolt-ball grid and structural drainage slope.
Wuzhong tobacco plant
Industrial · 60,000㎡

Wuzhong Tobacco Plant Silk Workshop

60,000㎡ · ~2,700 t of steel

Welded + bolted hybrid nodes, full roof delivery for a large industrial workshop.
Sharjah gas station
International · 30-Day Delivery

UAE Sharjah Gas Station Canopy

Large cantilever · 30-day delivery

Overseas canopy reference — fast-track delivery recognized by Middle East clients.
View All 31 Projects →
Digital Showroom

Digital Showroom

Experience Purun 360° — from wherever you are

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3D Virtual Factory Tour

Virtual Factory Tour

11-station immersive online audit — 100% real factory photos plus a rotatable 3D joint model.

Start Tour →
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Global Project Map

Global Project Map

Interactive map of 31 projects with 5-category filter — all references at a glance.

Open Map →
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Fabrication & Erection Brochure

Fabrication Brochure

19-page blueprint album covering cutting, welding, forging and painting processes.

View Online →
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Company Showcase

Company Showcase

12-page photo album: base, production lines and certificates in one volume.

View Online →
Why Purun

Why Purun

31Projects Delivered
Projects Delivered
10+Export Markets
Export Markets
±2mmLength Tolerance
Length Tolerance
25yr+Coating Design Life
Coating Lifespan
ISO9001 · Steel Structure Contracting Qualification · Customs Registration　|　View Certificates →

Have a Space Frame Project?
Talk Directly with the GM

Scan WeChat to add GM Shang Ruida — quotations, solutions and drawing translation in one chat.
Fast response on WeChat, WhatsApp and email.

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+86 176 2646 6881　Phone / WhatsApp
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Xuzhou, Jiangsu, China · Factory visits welcome
WeChat QR code
Scan WeChat · Talk to the GM
Direct line to the decision maker
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