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
Roller shade with Spring Type and Chain type Roller shade with paper roller , Aluminium tube can be only textile or ready made into any size as you want .