DN55 series inwards-open casement windows

The DN55 series inwards-open casement windows from Hongjia Aluminium Co., Ltd are aluminium-framed windows designed for inward-swinging operation, with a frame depth of 55mm and standard glazing thickness up to 24mm. The system supports double or triple glazing configurations, with thermal breaks integrated into the frame profile to reduce heat transfer. These windows are built for residential and light commercial use, with a focus on weather resistance and operational smoothness.

The aluminium alloy used is typically 6063-T5, with surface finishes including powder coating in RAL colours or anodised treatments. The hardware includes multi-point locking systems and stainless steel hinges rated for 100,000+ cycles. Standard glass options include clear, low-e, or tinted float glass, with air gaps of 12mm to 16mm in double-glazed units. These specifications align with typical European and Australian window standards for climate zones with moderate to high thermal demand.

These windows are commonly purchased by architects, contractors, and renovation firms in Southeast Asia, the Middle East, and Eastern Europe for new builds and retrofit projects. Trade terms include FOB Guangzhou or CIF destination ports, with minimum order quantities starting at 50 square metres. Packaging is custom wooden crate with foam padding, and delivery lead times are typically 30 to 45 days after deposit confirmation. Certification documentation for ISO 9001 and CE can be provided upon request.

Hongjia Aluminium Co., Ltd operates from Shishan Industrial Zone in Foshan, Guangdong, China, with a focus on aluminium window and door systems for export markets. The supplier is classified as an imported tier with harbor trust status, indicating verified export experience and shipping reliability. There is no public data on factory size, workforce, or years in operation, and no claims are made regarding certifications, client lists, or production capacity beyond what is directly referenced in the product listing.

The company does not publish response rates or average reply times, and no direct contact verification is available on the listing. All product information is sourced from technical descriptions provided by the supplier, with no additional third-party audit or quality reports disclosed. Buyers should treat this as a direct manufacturer exporter with no intermediary layer, and confirm all technical details before placing orders.