Production
From Aluminum Billet To Packed Container
Eight controlled production stages run inside our own plant, so quality, colour and delivery are never outsourced.
The Extrusion Process Step By Step
Each stage is documented, inspected and recorded so any batch can be traced back to its melt.
01
Billet & Casting
High purity primary aluminum ingots are melted, refined and cast into homogenized billets, with alloy composition verified by spectrometer before extrusion.
02
Die Design & Mold Opening
The R&D center converts your cross-section drawing into a die design, simulates metal flow, then machines and nitrides the die for exclusive production.
03
Automatic Extrusion
Eight fully automated extrusion lines in Kaifeng — plus three lines each in the Hotan and Shaanxi plants — press profiles under controlled temperature and speed.
04
Stretching & Aging
Profiles are stretched straight, cut to length and artificially aged in ovens to reach T5 / T6 mechanical properties.
05
Surface Treatment
Complete in-house lines for anodizing, electrophoresis, powder crystal coating, wood grain transfer and fluorocarbon spraying.
06
Thermal Break Processing
PA66 GF25 insulating strips are inserted and rolled into the profile chambers, then pull-tested for shear and tensile strength.
07
Deep Processing
CNC cutting, drilling, milling, tapping, bending and assembly turn profiles into finished parts and complete door and window sets.
08
Inspection & Packing
The independent laboratory checks dimension, coating thickness, adhesion, hardness and mechanical performance before foam-wrap packing and container loading.
Six In-House Finishing Lines
Anodizing, electrophoresis, powder coating, wood grain transfer, PVDF spraying and mechanical texturing.
Anodizing
Film 10 – 25 μmOxide film in silver, champagne, black and bronze — corrosion resistant with a clean metallic look.
Electrophoresis
Composite film ≥ 21 μmAcrylic resin coating over the oxide layer for a smooth, high-gloss and weather resistant surface.
Powder Coating
Film 60 – 120 μmElectrostatic polyester powder in any RAL colour with excellent chalking and impact resistance.
Wood Grain Transfer
Film ≥ 60 μmHeat transfer printing over powder base, reproducing timber texture with a fire-safe aluminum body.
Fluorocarbon (PVDF)
Film ≥ 40 μmThree or four coat PVDF for curtain wall and coastal projects with long-term colour retention.
Sand Blasting / Brushing
Custom Ra valueMatte or hairline mechanical texture, often combined with anodizing for premium interior products.
Eight Inspection Gates Before Shipment
Our independent laboratory tests every batch against national and international standards.
- Alloy composition — spectrometer analysis of every melt
- Dimension and wall thickness — micrometer and profile projector
- Coating thickness — eddy current and magnetic gauges
- Adhesion — cross-cut and boiling water tests
- Mechanical properties — tensile, yield and Webster hardness
- Thermal break strips — shear and tensile pull-out testing
- Weathering — salt spray and accelerated ageing
- Packing — film wrap, kraft paper, foam and wooden crate check
Want to audit the line before ordering?
Book a factory visit or arrange a third-party inspection — both are welcome.