About: http://webisa.webdatacommons.org/444596112

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	The defect types include the lack of penetration, the lack of fusion, defects on the upper area of the oil groove and weld pores.
http://www.w3.org/ns/prov#wasQuotedFrom	ndt.net