External opening insulated aluminum windows are a type of window that is designed to open from the outside and is insulated for energy efficiency. These windows are typically made from extruded aluminium sections and may include features such as double hollow Low-E glass, thermal insulation material, and various hardware components. The specific design and materials used can vary, but common characteristics include a square box section with an extended arm that forms the abutment for a hinged window, inwardly projecting ribs that grip the thermal insulation material, and a gap in the upper surface to receive a sealing strip. Some variations may include different series of aluminum profiles, such as 70 series for bridge-cut insulated aluminum alloy windows or 50 series for non-bridge-cut insulated aluminum windows, and may have different glazing options, such as single or double glazing. E-Taifeng company makes these windows, and can be customized to meet specific needs.
