About: http://webisa.webdatacommons.org/47057564

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	Further, the coupling flanges 12-1, 12-2 are preferably jointed and fastened together by spot welding, if both of the base 22 and cover 23 are made of metal including iron.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr