About: http://webisa.webdatacommons.org/255065265

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	Subsection (c) requires copper tubing (used in welding and cutting gas systems piping) to be types K and L in accordance with the Standard Specification for Seamless Copper-Alloy Water Tube, ANSI/ASTM B586-1980.
http://www.w3.org/ns/prov#wasQuotedFrom	ca.gov