1. When selecting hardware accessories, the model, specifications, and functions should comply with the standards and relevant regulations, and should match the selected plastic steel doors and windows.
2. When installing hardware, use fastening screws, and a metal lining plate should be installed inside. The thickness of the lining plate should be greater than twice the pitch of the fasteners.
3. After the installation of metal stamping parts, regular maintenance should be carried out to prevent rust and erosion.
4. The door and window lock handles should be assembled after the window and door leaves are framed, with accurate positioning and flexible opening and closing.
5. Sliding windows with a width exceeding one meter or double glazed doors and windows should be equipped with double pulleys.
6. The sliding support hinge is made of stainless steel material.
7. During use, gently close and open.
