About: http://webisa.webdatacommons.org/149077487

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	A force feed hopper (or ???crammer???) is preferred to feed the materials into the extruder, although other types of hoppers could be used.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au