How To Select Window Manager?
1, according to the different window-type, there are several options window: optional rack or pusher-type electric window engine, which is suitable for vertical loading, wind and rain resistant strength, and thrust is generally done very big.
Sliding Windows: to use rack-or screw-type electric window engine, which is also suitable for straight running, when you close the window, closes the window sash seal well. Blinds: rack and to use small or screw-type electric window machine.
Up/down/Hung Windows: using the chain, rack and screw are also available, but the push and pull of rack Max.