Hand-cranked outward-opening top-hung window opener

Product adaptation

Applicable to all kinds of factories, various aluminum alloys, curtain walls, plastic steel profiles and other application scenarios;

Product Features

Operating instructions

According to the required ventilation and lighting, the opening angle of the window can be controlled by the hand crank. Slowly turn the hand crank counterclockwise, the crank arm will gradually shrink, and the window will slowly close;