Introduction: Nanfei Electronics is one of the suppliers in the field of human-machine communication. Naafe electronic products are divided into components: pressure and key switches, control equipment, command and signal devices, short stroke and long stroke buttons, signal lights, and emergency stop actuators. RAFI also provides customized components; Ananfei Electronics also provides electronic EMS services: integration of chips on Semiflex boards, electronic components in plastic casings, integration of onboard chips with standard technology, rigid flex components, standard technology SMD and THT, and 3D assembly; Shanghai Nanfei Electronics official website: www.rafi.de.