About: http://webisa.webdatacommons.org/307500831

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 ends of shafts 48, 50, 52 and 54 are preferably inserted into respective bores in block 46, and are affixed to block 46 by means such as screws 62.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk