The main applications of the stainless steel invisible manhole covers are as follows:

1. Drainage engineering, applicable to stormwater and sewage pipelines

2. Water supply engineering, applicable to potable water and fire protection projects.

3. Heating engineering, applicable to thermal arm lines.

4. Power supply engineering, applicable to power supply cables, telecommunication projects, telephones, and communication cable pipelines.

5. Landscape engineering, applicable to supporting comprehensive pipeline systems.

6. Gas Engineering, applicable to gas projects, natural gas pipelines, etc.

7. Streetlight Projects, applicable to power supply, lighting, and cable pipeline.