The use of power plugs is very wide. Large and small industries may require power plugs. It can be said that "wherever electricity is needed, there is a power plug". The purpose of the power plug is as well as everywhere in our life. Simply put the following major industries.
Household appliances: The closest thing to our lives is the power plug on household appliances. TVs, refrigerators, fans, air conditioners, etc. all need to be used and must use power plugs.
Communication field: Usually our various communication fields will also use power plugs, such as telephones, wire receiving towers, aviation equipment and so on. All kinds of production equipment used in the factory, etc. require a power plug, in short: "Where there is electricity, there is a power plug.