Electric single chain window opener
Generous and exquisite appearance design. Double electronic travel switch + current overload double protection. Adopt double-layer metal chain design, running stable and smooth. Low noise design. IP32. More than 50,000 life tests. Customizable....
Fire damper, fire and smoke dampers, smoke vent, exhaust fans, exhaust ducts, and louvers, etc; electric window opener, linear actuator window openers, chain type window openers, Hand-cranked window openers, and remote control panel, etc.