Hook

Hooks for chains with handlebar joints can easily adjust the window’s position, ensure the smooth functioning of Windows, reduction gears and chain link imbalance caused by interference.

Explosion-proof window

Explosion-proof window not only makes operator maintain water, gas and pipeline conveniently, but also avoiding the inconvenience of removing side panels.

Valve

Two-sided columns reserved hole makes it easy to install remote-controlled water, gas control valves, to suit different occasions water and electricity supply

Sensor

Infra-red alarm on shoot induction sensors according to different objects out of window opening height, instead of adjusting window’s open position manually.