About: http://webisa.webdatacommons.org/217461573

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	Bobbin casings should be able to withstand some adjustments but if you have to constantly work to get it right and it seems to be the bobbin case that is a problem, probably is a good idea to purchase a new one.
http://www.w3.org/ns/prov#wasQuotedFrom	sew-whats-up.com