National Standard: The plug is used in China, Australia, New Zealand, and Argentina; its feature is three flat heads
American Standard: Plug used in countries like the USA, Canada, Japan, Brazil, Philippines, Thailand, and Taiwan, with a feature of one round and two flat ends.British Standard: Plug used in countries like Hong Kong, UK, India, Pakistan, Singapore, Malaysia, Vietnam, Indonesia, Maldives, Qatar, with a feature of three square ends.European Standard (German Standard): Plug used in countries like Germany, France, Netherlands, Denmark, Finland, Norway, Poland, Portugal, Austria, Belgium, Hungary, Spain, Sweden, and other EU countries as well as Korea and Russia, with a feature of two round ends
South African Standard: The plugs are mainly used in South Africa, India, and Russia, characterized by three round heads. There are also Italian Standard (Italian Standard) plugs, Swiss Standard (Swiss Standard) plugs, etc