Sociedad Española de Montajes Industriales, S.A. - Grupo Semi - - Electrical engineering and consulting

Installation of Base stations of mobile telephony GSM, DCS, LTE and GSM-R. Torres antennas and masts meteorological support. Supply, civil works, reinforcement and mounting of steel towers, self-supported for mobile phone masts, vented masts, towers special design, light turret and tubular mast on land and building. Booths of sheet metal and concrete, equipment and supply prefabricated huts monobloc and prefabricated huts partitioned. Lightning protection power through lightning deioniser slow downloading and grounding.