About: http://webisa.webdatacommons.org/255490319

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	Certifications covering carbon steel, stainless steel, aluminum, invar and other non-ferrous materials:
http://www.w3.org/ns/prov#wasQuotedFrom	welding-fabrication.com