Product Series :Double glazed solid wood tilt and turn window
Do not use excessive force when opening wooden doors and windows or turning the door lock handle, which will reduce the service life of woodenwooden window fittings. Hinges, door and window locks and other frequently moving hardware accessories shall be tightened immediately in case of looseness. When the wooden door and window lock cannot be opened properly, an appropriate amount of pencil lead can be added to the key hole.