Sockets in Hong Kong hotels

Gangyong's socket is a British standard socket, which is the so-called square foot socket/plug.

Involving the use of chargers in various countries, there are scraping socket products for special hotels, with built-in transformers and voltages of 1 10V and 220V. There are two types of plugs that can be used: flat plugs and round plugs, as shown in the attached drawings: