About: http://webisa.webdatacommons.org/208769792

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 bubble is turned inside the mould, the result is a uniform, smooth shape and an even, thin wall.The alternative is a still mould, which is made of cast iron and is always hinged.
http://www.w3.org/ns/prov#wasQuotedFrom	glassmessages.com