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<http://webisa.webdatacommons.org/prov/232207805>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/414399967> .
<http://webisa.webdatacommons.org/414399967>	<http://www.w3.org/ns/prov#value>	"It is also known to achieve an improved sliding capability with glide elements such as a glide bar or glide plates which are made of a colloidal graphite and are mounted on the underside of the crosshead shoe surface or on the rail." .