TRAPEZE COMPATIBLE ROOF WINDOWS Our covers are made of DKP(Galvanized)sheet. From to outer side is 112cm*90cm,outlet throat size is45cm* 60cm. Our top covers tempered safety glass. Our covers provide 1 step ventilation and open 110 degrees,locked from inside. Our covers are shock absorber. We can produce our covers as top opening-closing as well,in accordance with your request.
