6. By adjusting the number of pre tighening turns of the boost spring. the automatic rising speed ofthe roll blind can be adjusted. 7.System with limiter, Automatic stop when the roll blinds rises /falls to the fxed posin 8.The clutch used mertal core technology. ...
3.Roller blinds can be stopped at any height. 4.By adjusting the number of pre tightening turns of boost spring,the rising speed of roller blinds can be adjusted. 5.1:1.5 reduction ratio is adopted for the clutch making,which makes it easier to the ...
Many types of window shades are currently available on the market, such as Venetian blinds, roller shades and honeycomb shades. The shade when lowered can cover the area of the window frame, which can reduce the amount of light entering the room through the window and provided increased privacy...