K165

WEAR-RESISTING PIECES CONSISTING OF CEMENTED HARD METALLIC COMPOSITIONS-NAMELY, INSERTS TO BE USED IN TOOLS FOR CUTTING, SHAPING, OR FORMING METALS, EITHER HEATED OR AT NORMAL ROOM TEMPERATURES, AND OTHER MATERIALS, FOR DIES, CUTTING TOOLS, HEAT-RESISTING BEARING-SURFACE AND WEARING-SURFACE PARTS, AS MECHANICAL ELEMENTS AT NORMAL OR ELEVATED TEMPERATURES IN DEVICES SUCH AS GAS TURBINES, DIESEL ENGINES, ETC., AND AS STRUCTURAL HEAT-RESISTING ELEMENTS IN SUNDRY MECHANICAL EQUIPMENT