Measures to prevent damage to hardware:
1. The model, specification and performance of the selected hardware fittings should conform to the current national standards and relevant regulations, and match the selection of plastic steel doors and windows.
2. For sliding windows with a width of more than 1 m, or doors and windows with double glazing, double pulleys or rolling pulleys should be used.
3. The sliding hinges shall not be made of aluminum alloy and shall be made of stainless steel.
4. To install the hardware with the fastening screws, a metal lining must be built in. The thickness of the lining should be at least twice the distance of the fastener. Do not fasten to plastic profiles or use non-metallic linings.
5, hardware accessories should be installed last, door and window locks, handles, etc. should be assembled after the window door fan is inserted into the frame to ensure correct position and flexible switch.
6, the hardware should be carefully maintained after installation to prevent rust and corrosion. In daily use, it should be lightly closed to prevent hard opening and damage.
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