DHMM is partially owned by SUOCHEN, was established in 1990 and currently has 200 staffs,including 36 management personnel.DHMM obtained BS-EN-ISO-9001 : 2000 Certificate of Quality Management System in 2005.DHMM machines the ferrous and non-ferrous castings, which includes large size welding electronic housing, large size casting housing,various sizes of casting electronic brackets, etc…it has archived more than 160,000pcs of production capacity yearly.