
cast iron collars. This helps to save time and labor costs, making them a practical choice for busy work sites.


Meeting Rails: The lower rail of the sash where the two sashes meet when the window is closed.
Thermal insulation aluminum extruded profiles for doors and windows
Aluminum windows profile and aluminium doors profile have a series of excellent performances such as high hardness, strong toughness, good mechanical properties and corrosion resistance. The overall weight bearing capacity of the window is strong, wear-resistant and durable.