... products produced by Dajiang Electron Company include:DC connecting plugs, DC socket, connecting plugs for earphones, pins ... mobile-phone, plugs for 5.5 DC power-supply, DC plug, DC jack, RCA jack, MiNi pin, ... RCA connecting plugs, MiNi USB plugs, earphone sockets, RCA sockets, AC ... plugs, tuning-fork plugs, AC plugs, DC plugs and earphone plugs.3.5 DC PLUG 3.5 nine- ...