Custom Stainless Steel Ventilation Pipe & Ductwork Fabrication from China Manufacturer

MetalKeen is a premier China-based manufacturer specializing in custom stainless steel ventilation pipes, ductwork, and exhaust systems. Utilizing state-of-the-art laser cutting, longitudinal/spiral seam welding, automatic flanging, and precision forming, we engineer leak-proof, high-corrosion-resistant ventilation solutions for commercial HVAC, cleanrooms, chemical plants, and food processing facilities across North America, Europe, Australia, and the Middle East

International HVAC Codes & Material Standards Compliance We process top-grade 304, 304L, 316, and 316L stainless steel, custom-fabricating ductwork in strict compliance with major regional engineering standards:

• North American Market (US & Canada): Engineered in accordance with SMACNA (Sheet Metal and Air Conditioning Contractors' National Association) duct construction standards and ASTM A240 / AWS D1.6 stainless welding codes.

• European & UK Market: Manufactured to match DW144 / EN 1506 / EN 12237 airtightness class and ventilation ductwork specification requirements.

• Middle East & Asia-Pacific: Heavy-gauge welded stainless steel ducting designed for high-temperature, highly corrosive industrial exhaust environments (oil & gas, desalination plants, power stations).

Ductwork Type / ProcessManufacturing Range & SpecsTypical Global Project ApplicationsRound & Spiral DuctingDiameter: 80mm – 2000mm, Thickness: 0.5mm – 5.0mmHigh-velocity HVAC systems, industrial air filtrationRectangular DuctworkCustom dimensions with Angle Iron / TDC / TDF flangesCommercial building ventilation, basement exhaustWelded Heavy-Gauge PipeFully TIG welded seam, airtight pressure testedChemical fumes, corrosive exhaust, kitchen grease ductFittings & AccessoriesBends, Elbows, Reducers, Tees, Dampers, HoodsComplete ductwork system integration & airflow control

Space-Saving Export Packaging & Global Shipping Logistics To significantly reduce overseas freight costs, MetalKeen offers engineered nesting packaging designs (fitting smaller pipe diameters inside larger ones). All ductwork is wrapped with protective PE film, reinforced with inner support rings to prevent deformation, and packed in fumigation-free wooden crates.

• Ocean Freight (FCL / LCL): Direct routes from major Chinese ports to Houston, Los Angeles, Rotterdam, Hamburg, Jebel Ali (Dubai), and Sydney.

• Air Express for Fittings: Rapid dispatch for custom manifolds, hoods, or urgent connection fittings via express air freight within 3–5 days.