About: http://webisa.webdatacommons.org/370742339

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	For manufacture, a stepped structure can be etched or embossed into a substrate material such as glass or plastic.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca