Labels:signaling device OCR: ZSVAK ZAPADOSLOVENSKE VODARNE A KANALIZACIE. operation of water distribution network and seweraae treatment of sewage, supply drinking water TRNAVSKA 826 29 BRATISLAVA Phone: ++/ 421/7 55577514 (EXCHANGE) 55574936 (DIRECTOR) Fax: ++/421/7/55566895 Email: zsvakpr@zsvak. .sk sewerage