Ningbo Forward Relay Corporation Ltd (HF) Founded in 1986 and specializing in research, development and mass production of electromagnetic relays. Ningbo Huaguan Electronics Co.,Ltd (NHG) is a sole foreign invested company, specialized in electric-magnet relay R&D and mass production. The company has been certified successfully with ISO9001, ISO14001 and ISO/TS16949 System Certificates. Our products have been approved by VDE, UL, CUR, TüV and CQC safety organizations and institutes.