8536700003 under HS Code ELECTRICAL APPARATUS FOR SWITCHING OR PROTECTING ELECTRICAL CIRCUITS, OR FOR MAKING CONNECTIONS TO OR IN ELECTRICAL CIRCUITS (FOR EXAMPLE, SWITCHES, RELAYS, FUSES, SURGE SUPPRESSORS, PLUGS, SOCKETS, LAMP-HOLDERS, JUNCTION BOXES), FOR A VOLTAGE NOT EXCEEDING 1,000 VOLTS - CONNECTORS FOR OPTICAL FIBRES,OPTICAL FIBRE BUNDLES OR CABLES, 8544200000 under HS Code Others, and 8517620003 under HS Code Others. were the top exported HS Codes by JOINT STOCK COMPANY RTCOMM RU in 2021.