Aluminium Profile.
"M" Aluminum Profile Frame frames are widely used for dead glass windows. The shape is like letter M has 2 sides the same as openback, the other side can be closed.
In addition to the White Color, we sell 4 inch screw M frames with various color variants, and we also sell various profiles for the manufacture of frames such as 4 inch & 3 inch Open Back.
For more information, please contact us.