It is necessary to develop a good habit of regular cleaning and regular inspection, and proper maintenance. There is generally no problem with steel grating after 30 years of use. The specific maintenance methods are as follows:
1. Keep it clean at ordinary times and don't be covered with all kinds of dirt, especially some corrosive residues.
2. The steel gratings fixed by bolts must be checked regularly, pay attention to whether the bolts are loose, and deal with hidden dangers in time.
3. If the galvanized layer is gone, apply anti-rust paint in time.