About: http://webisa.webdatacommons.org/41768053

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	In the catalyst used for producing the propylene-ethylene block copolymer, an amount of the transition metal contained in 100 g of the carrier is usually 0.05 to 10 g, particularly preferably 0.1 to 2 g.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com