About: http://webisa.webdatacommons.org/224004068

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 key players are either privately held or are divisions of larger companies that do not disclose details, so hard data such as revenue and market share are elusive.
http://www.w3.org/ns/prov#wasQuotedFrom	amm.com