What are the uses of industrial waterproof plugs and which companies are they used in?

Shit, I'm in this field. I have something to contact :tieshu2020@sina.com. It has a wide range of uses, and it will be used wherever industrial electricity is used. The following industries will use it more:

1, injection molding machine/extruder

2, film and television lighting and sound equipment and engineering

3. Power generation equipment

4. Mechanical equipment: food machinery, mobile welding machines, etc.

5. Cabinet industry

6. Industrial Automation Equipment Company

7, packaging machinery (heat shrinkable packaging machine)

8. Construction projects: new factory (workshop renovation), subway, etc.

9, power distribution equipment (distribution cabinets, distribution boxes, etc. )

10, air conditioning unit

1 1, lighting lamps

12, transportation equipment

13, electronic instruments

14, energy production (solar energy, wind energy and nuclear energy)

15, parts processing

16, mobile communication: special vehicles

17. refrigeration equipment: refrigerated containers (port authority), etc.

18, measuring instrument

19, machine tool industry