About: http://webisa.webdatacommons.org/244883071

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	Fatigue cracks at weldments where defects may be hidden under paints, rough surfaces and other materials are especially problematic.
http://www.w3.org/ns/prov#wasQuotedFrom	sbir.gov