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.