1. When selecting hardware accessories, the model, specification, and function must comply with national standards and relevant regulations, and must match the selected plastic steel doors and windows.
2. Fastening screws should be used to install hardware, and a metal lining plate must be installed inside. The thickness of the lining plate must be greater than twice the pitch of the fasteners.
3. After installation, regular maintenance of metal stamping parts should be carried out to prevent rust and corrosion.
4. The door and window lock handles should be assembled after the window and door leaves are inserted into the frame. The position must be accurate and the switch must be flexible.
5. Sliding windows with a width of more than one meter or double-glazed doors and windows must be equipped with double pulleys.
6. The sliding support hinge is made of stainless steel.
7. Turn it on and off lightly during use.
