
Founded in 2013 in Taishan, Jiangmen, Guangdong, JJHI is a national high-tech enterprise integrating structural-steel R&D, detailing, fabrication and installation.
Our 32,000 m² manufacturing base supports industrial buildings, transport infrastructure, public architecture and energy projects. Products have been delivered across China and to Thailand, Jordan, Egypt, Tanzania and Australia — including Hong Kong International Airport and Dubai Metro.
From customer drawings to on-site delivery — controlled detailing, fabrication and inspection at every step.
Customer designs and plans; JJHI supports engineering development.
Shop drawings prepared and submitted for approval.
Advanced facilities and precision fabrication.
Installed on site by customer or local contractor.
Professional, efficient service for customers worldwide.
From standard beams and columns to long-span trusses and double-curved box girders — every member is detailed and fabricated for industrial, civic, bridge and overseas projects.

Box columns, double-curved box girders, lattice columns, elevator-shaft members and Hong Kong Airport excavation members — heavy steel, engineered to perform.
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Trusses, steel beams, spiral stairs, floating bridges and complex custom structures — delivered with controlled detailing, tooling and inspection.
View DetailsPlants, workshops, logistics warehouses and equipment platforms.
Airport terminals, metro stations, toll stations and noise barriers.
Museums, exhibition halls, schools, hospitals and parking structures.
Power plants, petrochemical units, blast-furnace and denitrification systems.
Thailand, Jordan, Egypt, Tanzania, Australia and other markets.
Airports & transport, industrial & energy, public & commercial, and overseas projects.
Nearly one hundred structural-steel fabrication projects completed — from airports and metro systems to industrial and public buildings.
Excavation Steelwork · Hong Kong
Memorial Steelwork · Nanjing
Station Construction · Dubai
Coke Dry-Quenching System
Overseas Project
Auxiliary Steelwork
Laser cutting, laser marking and robotic welding support a complete process chain — from cutting and assembly to welding, straightening, blasting, coating and packing.

High-precision plate cutting.

Automated robotic welding.

CNC drilling and assembly-welding.

Shot-blasting, paint and packing.
JJHI aligns low-carbon transition, workplace safety and governance with the EU CSRD and CBAM frameworks and China's dual-carbon strategy.
Recognized since 2018
Quality Management
Environmental Management
Occupational Health & Safety
Building excellence with global partners — send us your drawings and we will deliver the steel, on time and to your standard.
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