Aluminum/plastic frame for protecting against insects can be adapted in any of its dimensions for a perfect fit to any required size, without it having to be sawed to size

摘要

An aluminum/plastic frame for a door/window to protect against insects can be adapted in any of its dimensions for a perfect fit to any required size, without it having to be sawed to size, because running in its external frame element (1) there is an internal frame element (2) that can be fixed at a desirable length by fixing screws (3).