01
Large-diameter LSAW Pipe
Longitudinal submerged-arc welded pipe formed from plate for large-diameter, heavy-section and project-specific requirements.
View productLongitudinal welding · Heavy forming · Qingdao
Steel shaped for the world's demanding projects.
Large-diameter welded pipe, tapered sections and custom formed components built around your material, geometry and inspection requirements.
FORM · WELD · VERIFY
LSAW PIPEHEAVY WALLCUSTOM FORMINGSTAINLESS STEELPROJECT DELIVERY
11,000 m²Factory footprint
2 pipe workshopsDedicated manufacturing
60+ employeesProduction team
12 technical specialistsEngineering capability
Product programme
From plate to project-ready geometry.
Explore large-diameter pipe, heavy-wall sections and custom formed components manufactured against application requirements.
02
Heavy-wall Longitudinal Welded Pipe
Heavy-wall longitudinal pipe for high-load equipment, structural and pressure-related project applications.
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03
Precision Welded Pipe
Custom welded tubular sections manufactured for projects where fit-up, straightness and dimensional repeatability matter.
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04
Tapered & Reducer Pipe
Conical, reducer and unequal-diameter welded sections formed to project drawings for poles, structures and equipment transitions.
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05
Stainless Steel LSAW Pipe
Large-diameter stainless steel longitudinal welded pipe and cylindrical sections for corrosive and clean-process environments.
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06
Square & Rectangular Tube
Large fabricated square and rectangular hollow sections for load-bearing structures and equipment frames.
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07
Shaft Tube
Heavy tubular blanks for rolls, shafts and rotating equipment components requiring controlled dimensions and material selection.
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08
Large Formed Steel Components
Large U, C, L, box, transition and multi-sided components formed from wide or heavy plate.
View productManufacturing path
One controlled line from plate to inspection.
- 01Plate cutting
- 02Edge preparation
- 03Pre-bending
- 04CNC forming
- 05Seam closing
- 06Submerged-arc welding
- 07Straightening
- 08Inspection
Forming power
Capacity measured in thousands of tonnes.
High-capacity pre-bending, CNC forming and longitudinal welding systems support large and difficult tubular geometry.
- CNC hydraulic pipe forming machine2,400T / 6,000T · working length up to 14,000 mm
- Pre-bending machine2,000T / 4,000T
- Seam closing machinePipe diameter 300–1,500 mm · wall thickness 10–80 mm
- Longitudinal submerged-arc weldingFour external and two internal automatic welding systems
Application sectors
Built around the realities of the project.
Marine engineering
Material, geometry, fabrication and inspection reviewed against the application.
Machinery manufacturing
Material, geometry, fabrication and inspection reviewed against the application.
Petrochemical equipment
Material, geometry, fabrication and inspection reviewed against the application.
Steel structures
Material, geometry, fabrication and inspection reviewed against the application.
Clean energy
Material, geometry, fabrication and inspection reviewed against the application.
Power & communications
Material, geometry, fabrication and inspection reviewed against the application.
Documented systems
Process control backed by inspection.
ISO 9001ISO 45001ISO 14001
Quality & inspectionSelected work
Project evidence, client identities protected.
Process Equipment Cylinders
Welded cylindrical sections produced for process-equipment fabrication with material-specific inspection requirements.
Heavy Tapered Structural Sections
Large tapered sections formed from high-strength plate for a heavy structural package.
Offshore Tapered Pipe Package
A multi-size package of long tapered welded sections manufactured for an offshore structural application.
Your geometry. Our forming route.