This standard specifies the requirements, test methods, inspection rules, marking, packaging, transportation, storage, and order form (contract) content for carbide rotary file blanks. This standard applies to carbide rotary file blanks for mechanized tools.
YS/T 552-2009 Referenced Document
GB/T 5242-2006 Check rules and test methods of cemented carbide products
GB/T 5243-2006 Marking, packing, transport and storage of cemented carbide products