Import Air Duct — Buy in Bulk from Supplier in China

City Resoureces Holding Ltd. offers phenolic foam air duct panels manufactured in China, supplied from their Shanghai office at Room 502, No.6 Lane 609 Caoyang Road. The source material specifies low thermal conductivity and good insulation performance, with the product positioned as an energy-saving insulation solution. Panel sizing and exact thickness are not stated in the available data and should be confirmed directly with the supplier.

Phenolic foam is a closed-cell rigid foam plastic formed from phenolic resin, valued in HVAC and building services for its fire-resistant properties and low smoke emission. Typical phenolic foam panels for ductwork range from 20 mm to 40 mm in thickness, with density commonly between 40 kg/m³ and 60 kg/m³. The foam faces are usually laminated with aluminium foil or glass tissue to provide structural rigidity and vapour barrier performance. Standard thermal conductivity for this material class is approximately 0.020 to 0.025 W/(m·K), though buyers should request the supplier's tested value.

These panels are used in commercial and industrial HVAC duct systems, cleanroom applications, and marine or offshore environments where fire performance is critical. Typical buyers include mechanical contractors, HVAC installers, and project developers in Southeast Asia, the Middle East, and Africa. The listing notes a containerised shipment basis of 1×40 HQ, indicating volume-oriented trade. Importers should confirm panel dimensions, facing type, fire classification to EN 13501-1 or equivalent, and whether the supplier provides fabrication drawings or only raw panels.

City Resoureces Holding Ltd. is headquartered in Shanghai at Room 502, No.6 Lane 609 Caoyang Road, postal code 200063. The supplier is classified as an imported-tier entity with a harbor trust tier. The response rate is recorded at 0.00 percent with zero average response hours, which suggests either a new listing or limited platform engagement rather than a verified operational assessment.

The company profile does not state factory ownership, production capacity, employee count, year of establishment, or specific certifications. No client references, export licence numbers, or quality management system registrations are provided. Buyers should conduct due diligence including a factory audit or third-party verification before committing to volume orders, given the absence of verification signals beyond the basic listing tier.