... .98%), Dia. :17.5mm Length :720-750mm Mainly used to found ingredient of material, cutter and heads, Tungsten ... 5mmLength :720-750mmNet weight: 3kg/piecePackage: wooden caseApplication: Mainly used to found ingredient of material, cutter and heads, conductor ... of kinds of heat-resistent steel and electrode, mainly used to guns, artillery,rockets, satellite,airplane and shipChemical Composition (%)Main ...