About: http://webisa.webdatacommons.org/398091401

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	However, it was difficult to adjust the temperature of the inner part of the die rings because temperature adjustment is conducted by a heating means such as heaters provided at the outer circumferential portion of the annular die.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com