Sheng Shing is a professional heat treatment service provider established since 1979. It is managed by president, Mr. Huang, and general manager, Ms. Yang. Sheng Shing has been approved by ISO-9000 since 1999, expanded the second plant in 2004, and been approved by ISO/TS16949 since 2014. The major heat-treatment workpieces are fasteners(including nuts and bolts), molds and other hardware.