1. Underwater Construction: Boring machines might be used for creating holes in the seabed or riverbed for foundations, piles, or other construction purposes.

2. Pipeline Installation: Submersible boring machines could be employed for drilling holes or tunnels for the installation of underwater pipelines.

3. Infrastructure Repair: In situations where underwater infrastructure needs repair or maintenance, submersible boring machines may be used to access and work on submerged structures.

4. Geotechnical Exploration: These machines might be used for underwater soil or rock sampling as part of geotechnical investigations.

To get specific information about a "Mini Submersible Boring Machine" or similar products, consider reaching out to manufacturers specializing in underwater construction or drilling equipment. Additionally, industry trade shows, equipment expos, and online forums related to construction and drilling may provide insights into the latest technologies and products in this field.