Cassette type roller blinds

Rolling curtains - a type of lifting window curtains, consisting of a cut of fabric and fixed on a bracket shaft, on which this fabric is wound.
Cassette roller blinds on plastic windows, unlike free-hanging roller blinds, fix the cloth (material) with the help of guides. The bottom plummet of the fabric is also fixed. This type of product is installed only on PVC windows, directly on the frame itself. The roll with the wound fabric is covered with a decorative box. Be sure to look at the photos of cassette curtains. Roller blinds with guides securely fix the cloth cloth. Being in the cassette, the material is always parallel to the window sash and goes along the double-glazed window.
The roller is installed in the upper part of the window frame. Installation is possible inside the window niche, on the wall, to the ceiling or on the sash of the plastic window.
This type of blind works by means of a side-winding chain mechanism, which is attached to the shaft, spring control mechanism.
The web of the roller blind is treated with a...