Hung Fung Steel (HK) Limited
Products：Special steel for mould
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Hongrita Plastics Limited
Products：Dashboard part, Car key remote control part, Padel
Hongfa Electroacoustic (Hong Kong) Co., Ltd
Products：Electric vacuum pump, automotive relay, HVDC relay, automotive body control module.
Hong Kong Automotive X'tals Ltd
Products：Quartz Crystal, Testing equipment for Quartz Crystals
HK Gear Company Limited
Products：R & D, production and sales of automotive transmission assembly