Testing Center
Duowei has its own independent testing center with national accreditation.
Raw material testing includes: steel,sandwich panel steel plate, etc. Qualified raw materials are the basis to ensure product quality.
Finished product inspection:
Wind resistance, heat transfer coefficient, bending capacity, metal low temperature impact, metal chemical composition analysis, oxygen index, bonding strength and salt spray test more than 40 test capabilities, to ensure that qualified products delivered to customers.
Floor Deck Workshop




·Fully automatic machine. From Rebar enters, straightens, and welds to the finished product
·High frequency resistance welding,
·German transformers, high continuous load rate
·Production speed is 3 times that of common equipment
Sandwich Panel Workshop




Production line:
·Total length of 200 meters.
·Annual capacity: 4 million square meters.
·Austrian automation equipment. ·90° Rotation: The core material is aligned vertically to the steel sheet to enhance the panel's compressive strength.
·Spray glue technology to ensure the uniform amount of glue and improve the viscosity.
·27.5 meters two-track curing machine:It can fully cure the product and effectively ensure the smoothness of the product.
Steel Structure Workshop

·German-imported automatic dust-free spraying production line
·Component scanning, automatic spraying, and automatic drying.
·Unaffected by temperature or humidity, ensuring reliable delivery quality.
·USA blanking sheet metal processing machine
·Processing thicknesses :12mm and above.
·High processing precision
·Fast processing speed
·Smooth cutting surfaces
·Remote programming by the technical department


Han's Laser Cutting Machine
·USA Laser cutting machine
·Cutting precision within 1mm
·Smooth cutting surfaces
·Reach minimal deformation
·Using BIM software to process to enhance precision.
Italian CORIMPEX Welding Line















