LK-SLS
400N single large synchronous chain window openers are used in natural ventilation or fire smoke removal, suitable for top hung, skylight roof window etc.
LK-SLC
400N single chain window openers are used in natural ventilation or fire smoke removal, suitable for top hung, casement window, skylight or roof window etc.
LK-SHS
700N single heavy synchronous chain window openers are used in natural ventilation or fire smoke removal, suitable for skylight roof window etc.
