New materials to make roller, roman shade , even Panel track or wall paper size can be 180cm or 220cm . special treatment to make roller shade at straight quality.
those Machinery can make the Venetian blinds , vertical blinds . machinery at fully one from forming ,punching,cutting to treading . also machinery to make headrail and bottom rail punching and cutti
Panel track with 2 or 3 or 4 or 5 track each Panel at materials of textile , Paper cane , Jute , wooden roller Panel can be in all kinds of size to create the spacing like divider at office etc