About: http://webisa.webdatacommons.org/217801049

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	It is the object of the invention to provide a method of manufacturing longitudinal-seam welded tubes of substantial wall-thickness, e.g. by means of a continuously operating process.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com