Import Duct Corner — Buy in Bulk from Supplier in China

Duct corners from Ningbo Power Electric Motor Co., Ltd. are manufactured in standard sizes: 15mm, 20mm, 25mm, 30mm, 35mm, and 40mm, with wall thicknesses of 1.5mm or 2mm. These components are designed for use in HVAC and industrial ventilation systems where precise airflow redirection is required. The product is offered in two variants: TDC and TDF, indicating different flange configurations for seamless integration into ductwork assemblies.

The base material is galvanized steel, with options in stainless steel and iron, each selected for corrosion resistance and structural rigidity. Surface treatments include zinc plating, black plating, and chromate coating to enhance durability and aesthetic finish. These finishes align with standard industrial practices for duct components exposed to moisture or moderate chemical environments. The material choice and coating options reflect typical specifications for commercial-grade ventilation fittings in Asia-Pacific markets.

These duct corners are primarily purchased by HVAC contractors, industrial equipment integrators, and manufacturers of commercial air handling units. They are shipped in cartons and palletized for full container loads of approximately 48,000 pieces. Buyers typically require confirmation of material grade, coating thickness, and dimensional tolerances before bulk orders. Lead time and packaging details must be confirmed directly with the supplier, as these are not specified in the listing.

Ningbo Power Electric Motor Co., Ltd. is based in Zhenhai Zone, Ningbo, China, with a harbor-tier trust rating indicating verified physical presence and operational capacity. The supplier specializes in metal components for mechanical systems, with this listing focused on duct corners as part of their ventilation product line. There is no public data on company history, employee count, or annual turnover. The listing shows no response rate or average response time, suggesting limited buyer engagement or inactive customer service channels.

The supplier does not claim certifications, export experience, or client references. No information is provided about in-house testing, quality control processes, or production volume beyond the container load capacity. Buyers should treat this as a manufacturer of basic metal fittings without verified quality systems or documented compliance. The absence of response metrics and detailed profile data indicates a low-touch sourcing channel, suitable for buyers who can verify specifications independently before ordering.