45212310 Construction work for buildings relating to exhibitions Construction work for buildings relating to leisure, sports, culture, lodging and restaurants
45212310 Gwaith adeiladu ar gyfer adeiladau sy’n gysylltiedig ag arddangosfeydd Gwaith adeiladu ar gyfer adeiladau sy’n gysylltiedig â hamdden, chwaraeon, diwylliant, tai llety a bwytai