gtr777HCD-GTR777, GTR888: E2, E51, AR 4-265-401-0[] Soldering irons using a temperature regulator should be set to HCD-GTR777, GTR888: MX 4-265-401-2[] about 350 °C. Caution:Cari di Google: Gtr777. 50 likes. . 47 followers. . Follow. . Posts. About · Photos · Mentions. Details. . Page · Gamer. . Not yet rated (0 Reviews).