How to prevent damage to car parts mould:
　　 1. The model, specification and performance of the hardware fittings selected should conform to the current standards and relevant regulations, and match the selection of plastic steel doors and windows.
　　 2. The sliding hinge shall not be made of aluminum alloy, but shall be made of stainless steel.
　　3. For sliding windows with a width of more than 1 meter, or double-glazed doors and windows, double pulleys or rolling pulleys should be installed.
　　4. Hardware fittings should be installed afterwards. Door and window locks, handles, etc. should be assembled after the window and door leaves are in the frame to ensure the correct position and flexible switching.
　　5. Install the hardware with fastening screws, with a metal lining plate inside, and the thickness of the lining plate should be at least twice the pitch of the fasteners. It must not be fastened to plastic profiles, and non-metallic linings must not be used.
　　 6. car plastic Injection mould should be maintained after installation to prevent rust and corrosion. In daily use, lightly close and open lightly to prevent hard closing and hard opening, which may cause damage. Without noise, there are now nylon wheels. Not only does it push and pull without noise, but it is also smooth and light, and its service life is not shorter than that of the above various pulleys. Make (doors) and windows normal. For smooth operation, we must choose high-quality pulleys for (doors) and windows. On the surface, inferior pulleys have rough workmanship, no smoothness, inflexible sliding, small and light.