Our louvre window frame product can be made by aluminum/steel frame + plastic/steel clips + aluminum/steel pulling rod, and suitable for 4 inch or 6 inch glass/aluminum slats, making louvre windows which are the most economic and popular style for modern house buildings.
Please well notice that SF-600 only has 4" clip type, but it is very durable and very traditional.
Projecting Air Vent Pulling Bar 4 Inch Jalousie Frame