About: http://webisa.webdatacommons.org/282745668

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	Hard materials such as rocks and concrete can be recycled as aggregates for concrete/asphalt production or as granular materials for road sub-base and drainage layers etc.
http://www.w3.org/ns/prov#wasQuotedFrom	cedd.gov.hk