About: http://webisa.webdatacommons.org/124336901

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	Surfaces for welding shall be clean and shall be free from paint, oil, rust, scale, or other material which is detrimental to welding. (3) Alignment.
http://www.w3.org/ns/prov#wasQuotedFrom	ecfr.gov