MPM500 Mecanica CNC Semiautomatic Wrapping Machine Doors&Windows Frames MPM500 Packaging machine for windows and door frames wraps door and windows frame profiles with a polyethylene air bubble or nylon film, wrapping the nylon along the profile edges of the frame. it is used only for wrapping the franes without glass inside. Tahnks to its practical design, big sized frames can be packed with one or two workers only without any limitation on the size of the frames within a very short time depending on how many layers of wrappipng you want to make and what is the size of overlapping.