Connector is a kind of signal or optical signal and mechanical force to make the circuit or optical channel on, off or conversion of functional components. The upstream market of the industry is the raw material market, which is mainly divided into raw materials and non-metallic raw materials. U mercatu mediu hè a industria di fabricazione di cunnette, chì hè pruduttu da l'imprese di fabricazione.

According to customs data, in 2020, the total import and export volume of China's connector manufacturing was usd 4.739 billion, of which the export volume was USD 3.592 billion, with a year-on-year growth of 14.78%; Imports were 1.147 billion DOLLARS, down 13.89% year on year. U surplus di u cummerciu di a China hà righjuntu US $ 2,445 miliardi.

Connector a industria di a fabricazione da u 2017 à u 2020, Cina di u Traone U cuntinuu Summinu è di sviluppu, hà fattu a cumpagnia di a tecnulugia, a forza di a cumpetenza significativa.

 è etc.