Zhonghengfeng has developed a coordinated production, inspection and logistics system for a large steel structure export to Guinea. The project covers more than 14,000 tonnes of fabricated steel and requires the team to manage multiple owners, strict coating specifications, export packaging and full material traceability.
The first batches have completed fabrication, inspection, packing and shipment. Components have also arrived safely at the designated port in Guinea. The work provides a practical example of how an export steel structure project differs from a conventional domestic delivery.
Export requirements beyond standard domestic delivery
The project includes several building packages and involves four client organizations, third-party inspectors, freight forwarders, port operators and the installation team. Instead of relying on standard road-transport packaging, the export plan uses pallets, steel frames, bundled packing and wooden cases according to the shape and weight of each component.
Each package carries information for component identification, lifting points, center of gravity and moisture protection. Components from different buildings are separated to reduce sorting work after arrival. The team also records package weights, vehicle assignments and dispatch quantities so each shipment can be checked before leaving the factory.
Coating and fabrication controls for the Guinea project
Coating work uses a three-layer Jotun system consisting of primer, intermediate coat and topcoat. The specified total dry film thickness is 245 microns, with controlled drying between layers. Additional spray stations allow coating work to continue while completed layers are curing.
Many members are cruciform columns and built-up sections with full-penetration welds. Experienced welders are assigned to critical joints, while production is divided into batches so completed components can move directly to packing and port consolidation. This approach helps reduce workshop congestion and supports the overall delivery schedule.
Material traceability from steel plate to shipment
The quality team separates incoming steel by grade and heat number, checks thickness and material documents, and preserves identification through cutting and fabrication. Welding consumables are stored in a controlled drying room and prepared according to the applicable procedure before use.
Inspection follows four levels: crew self-inspection, cross-checking, dedicated quality inspection and review by the resident supervision team. Critical welds receive 100% nondestructive testing. Records link the raw-material heat number to the component number, package mark and dispatch vehicle, allowing the team to trace information in either direction.
This workflow supports the applicable Chinese standards together with project-specific client requirements. Drawings and technical questions are controlled through written registers, and design changes require formal approval rather than informal workshop adjustments.
Coordinating multiple parties and port delivery
A dedicated coordination team manages document numbering, inspection submissions, customs information and technical responses. Daily reporting and early issue warnings help the factory, clients and logistics partners resolve questions before they affect production or shipment.
At Yantai Port, the logistics team handles vehicle entry, weighing, unloading and cargo acceptance. Forklift access is considered during package design to reduce dependence on limited crane resources. Transport vehicles are booked in advance according to package size and weight, with two carriers available to reduce dispatch risk.
A repeatable system for overseas steel structure projects
The Guinea project has produced reusable procedures for export packing, coating control, quality inspection, document management and multimodal coordination. Factory prefabrication is completed as far as practical before shipment, allowing the overseas site to focus mainly on bolted assembly and reducing the amount of site welding and testing.
Zhonghengfeng will apply these procedures to later batches and future international projects. Buyers can learn more about the group’s quality-control system, review its international project experience, or contact the project team about export steel fabrication requirements.
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