About: http://webisa.webdatacommons.org/407761121

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	It shows that ductile materials such as mild steel and aluminum suffer maximum wear at an impact angle of about 25 Degrees but offer a reasonable degree of resistance at normal impact.
http://www.w3.org/ns/prov#wasQuotedFrom	chemicalprocessing.com