The heart of efficient manufacturing operations is a strong, durable, and flexible infrastructure. Our prefab metal shop buildings are not just a brick-and-mortar facility; they are highly functional assets tailored to the operations.
Design Accuracy: 99.9%
Safety Regulations: Worldwide
Delivery Time: Fast
Customer Service: 24/7
Begin your journey by letting the manufacturer know your project plan and technical requirements.
Key Activities:
✓Send project dimensions (L x W x H) of prefab metal workshop buildings.
✓Describe local conditions (Wind speed, Snow load, Seismic zone).
✓Purpose for steel structure metal prefab workshop usage (Warehouse, Factory, Agricultural).
✓Talk about cladding materials (Sandwich panels, Single sheets).



The engineering department generates accurate drawings and 3D models of the structure, considering your local regulations for constructions.
Key activities:
✓Structural calculation reports.
✓AutoCAD / Tekla modeling.
✓Compliance with ASTM, GB, or Eurocodes.
✓Optimization for material efficiency.
Sign a legally-binding contract to agree on the commercial terms, cost, and production time.
✓Sales contract signing.
✓Deposit payment (usually 30-50%).
✓LC (Letter of Credit) or TT transfer arrangements.
✓Production timeline confirmation.



Today’s factories are able to process the raw steel into the final products using highly-advanced CNC machines and skilled welders.
Key activities:
✓Raw material sourcing (Q355B/Q235B Steel).
✓CNC cutting and hole punching.
✓Automatic submerged arc welding.
✓Shot blasting to Sa2.5 grade.
Apart from the rigorous inspection phases performed, tests are concretely taking components to their limits in order to fulfill both the structural and coating standards.
Key activities:
✓Ultrasonic testing for welds.
✓Coating thickness measurement.
✓Dimensional tolerance checks.
✓Pre-assembly of critical joints.
Carefully packed, all components will be put in containers getting ready for their long and sea journey.
Key activities:
✓Systematic numbering of all parts.
✓Loading into 40' HQ or Open Top containers.
✓Seaworthy packaging to prevent corrosion.
✓Export documentation (BL, CI, PL).



Your local team assembling the structure on site will be checked and guided step by step to assemble accurately and safely the structure in accordance with the drawings and the installation video.
Key activities:
✓Detailed installation drawings & video.
✓Online technical support via WhatsApp/WeChat.
✓Option for on-site engineer supervision.
✓Final structural acceptance.



Q1: Is the installation manual going to be charged separately?
A. The installation manual is complementary to the product delivery at no extra cost. It will be issued to customers together with the products in electronic form (PDF) and, if necessary, the key-step in paper format.
Q2: Is there a way for customers to Zhongda for installation guidance on a technical level?
A. Of course. When installing, the customer may come across technical difficulties that can be solved simply by asking the questions to Zhongda's technical group (for example, complicated node treatment, equipment matching problem). In such cases, they can call the service desk number that is in the contract or write the e-mail designated for them. We offer you remote help (like a video guide, drawing annotation, etc.) that solves technically the problem completely.
Q3: Can the warranty be void if the installation is of low quality?
A. In the warranty period and within the scope of the product warranty, the supplier is liable to carry out contractually all quality issues resulting from the manufacturing or engineering of the supplier (e.g. material failure, processing mistake). If there are any issues caused by improper installation (e.g. welding not following manual specs), Zhongda will be ready to collaborate in the evaluation and, after an agreement, provide the solution to repair (the customer is responsible for the costs).



Being familiar with thousands of international shipments of steel structure projects, our Procurement Consultant is at your disposal. Please, be curious about the technical standards in force, the types of your trucks, or the most lucrative strategy to reduce your costs.
We promise: cooperation. We furnish to our customers all the working documents they need at once so that they can start the work immediately: we send the detailed drawings of the production, the assembly schemes, the lifting plans, the list of high-strength bolts, the specifications of the weld defect detection, and the certificates of the quality of the materials - in fact, the whole package. As soon as clients receive these drawings, they are able to organize both the production and installation immediately, without the necessity of repeated confirmations, because we have made everything explicit in our drawings.

