About: http://webisa.webdatacommons.org/340897025

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	Before keypad buttons are assembled, they occur problems such as surface chipping, color difference, and font errors under process.
http://www.w3.org/ns/prov#wasQuotedFrom	ieee.org