... 17.5mm Length :720-750mm Mainly used to found ingredient of material, cutter and heads, Tungsten Rod W-1(W ... caseApplication: Mainly used to found ingredient of material, cutter and heads, conductor of heat,as the material and additive, crankshaft ... ingredient of kinds of heat-resistent steel and electrode, mainly used to guns, artillery,rockets, satellite,airplane and shipChemical Composition (%)Main ...