Nuclear grade abrasives for use in Nuclear Power Plant vessel maufacturing

we are doing a job for the USN and they require that all abrasives used in the fabrication of vessels must be Nuclear Grade.  Are there any distributors in the Ontario Canada region that sell these abrasives, i will even purchase from U.S.A. if there is a distributor.  I am looking for abrasive belts in various grits and sizes, and flap wheels again in various grits and sizes.  Any info would be greatly appreciated.  

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