| http://www.w3.org/ns/prov#value | - Of course, it will be understood that conventional impellers in which the fingers are connected at their outermost ends can also be employed.While this invention has been described in connection with a centrifugal blasting machine comprised of a single wheel disk, it will be understood that two wheel disks maintained in spaced apart relation can also be employed.There are a number of advantages as
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