Shanghai   Weighing   Apparatus General Factory, established   in   1917,   is   a   domestic   earliest   professional   weighing   apparatus   factory   .  With   superior   technology,   rich   experience   and   great   variety   of   goods,   it   specialized   in   all   kinds   of   machines   and   electronic   weighing   apparatus.It   is   key   enterprises   of   the   weighing   apparatus   trade   of   China   National   Light   Industry   Department,   passed   the   authentication   of   ISO-9000   Quality   System   and   the   international   legal   system   measure   organization   OIML,   which   makes   the   factory   become   the   first   weighing   apparatus   factories   obtaining   two   authentication   at   home. Shanghai   Shanying   Electronic   Weighing   Apparatus   Co.,   Ltd.,   a   private   share-issuing   enterprise   affiliated   to   Shnaghai   Weighing   Apparatus   General   Factory,   is   specialized   in   all   kinds   of   electronic   and   mechanical   weighing   apparatus   and   "Shanying"   household   balance.