About: http://webisa.webdatacommons.org/393478594

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	Turning now to the drawing, and in particular to FIG. 1, there is shown a sectional view of a conventional extruder screw 1 which has a front head portion 1' and a screw tip 7 for cooperation with the head portion 1'.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca