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</style>  </head> <body class="archive category category-proypologismoi category-7 ehf-template-neve ehf-stylesheet-neve nv-blog-default nv-sidebar-full-width menu_sidebar_slide_left elementor-default elementor-kit-3" id="neve_body" > <div class="wrapper"> <header class="header" > <a class="neve-skip-link show-on-focus" href="#content" > 螠蔚蟿伪蟺畏未萎蟽蟿蔚蟽蟿慰蟺蔚蟻喂蔚蠂蠈渭蔚谓慰 </a> <div id="header-grid" class="hfg_header site-header"> <nav class="header--row header-main hide-on-mobile hide-on-tablet layout-full-contained nv-navbar has-center header--row" data-row-id="main" data-show-on="desktop"> <div class="header--row-inner header-main-inner"> <div class="container"> <div class="row row--wrapper" data-section="hfg_header_layout_main" > <div class="hfg-slot left"><div class="builder-item desktop-left"><div class="item--inner builder-item--logo" data-section="title_tagline" data-item-id="logo"> <div class="site-logo"> <a class="brand" href="https://sek.ntua.gr/" title="螘螜螖螜螝螚危违螕螝螞螚韦螜螝螚螘螤螜韦巍螣螤螚螝螞螚巍螣螖螣韦螚螠螒韦惟螡" aria-label="螘螜螖螜螝螚危违螕螝螞螚韦螜螝螚螘螤螜韦巍螣螤螚螝螞螚巍螣螖螣韦螚螠螒韦惟螡"><div class="title-with-logo"><img width="90" height="90" src="https://sek.ntua.gr/wp-content/uploads/sites/5/2022/06/cropped-logo-1.png" class="neve-site-logo skip-lazy" alt="" data-variant="logo" decoding="async" /><div class="nv-title-tagline-wrap"><p class="site-title">螘螜螖螜螝螚危违螕螝螞螚韦螜螝螚螘螤螜韦巍螣螤螚螝螞螚巍螣螖螣韦螚螠螒韦惟螡</p><small>E胃谓喂魏蠈螠蔚蟿蟽蠈尾喂慰螤慰位蠀蟿蔚蠂谓蔚委慰</small></div></div></a></div> </div> </div><div class="builder-item desktop-left hfg-end"><div class="item--inner builder-item--custom_html" data-section="custom_html" data-item-id="custom_html"> <div class="nv-html-content"> <p>螘螜螖螜螝螚危违螕螝螞螚韦螜螝螚螘螤螜韦巍螣螤螚螝螞螚巍螣螖螣韦螚螠螒韦惟螡</p> </div> </div> </div></div><div class="hfg-slot center"><div class="builder-item has-nav"><div class="item--inner builder-item--primary-menu has_menu" data-section="header_menu_primary" data-item-id="primary-menu"> <div class="nv-nav-wrap"> <div role="navigation" 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