https://www.lexpera.com.tr/resmi-gazete/28-03-1972/14142 monthly 2026-07-16T08:43:41Z https://www.lexpera.com.tr/resmi-gazete/metin/surtunme-kaplamalari-debriyajlar-icin-metal-metalli-ve-vetal-seramik-hakkinda-karar-14142 1972-03-28T00:00:00Z