https://learning.hku.hk/ccch9051/group-1/files/original/fefb43bc102b0ff0e6f67713d4fc89b4.jpg 8f4c5377478d4502d74c6449e91f4bf5 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Skills and Knowledge Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Nodular Cast Iron Description An account of the resource In 1981, China's ductile iron experts used modern scientific methods to study 513 pieces of unearthed ancient Chinese iron tools. It was determined through massive data that spherical graphite cast iron appeared in China in the Han Dynasty. Date A point or period of time associated with an event in the lifecycle of the resource Han Dynasty(206 BC–220 AD) Subject The topic of the resource Iron casting technology Creator An entity primarily responsible for making the resource unknown Type The nature or genre of the resource Skills Relation A related resource Frying Steel and extremely fine steel technology Format The file format, physical medium, or dimensions of the resource Production method Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Weapons and tools