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审查通过的国家标准 (报批稿 )目录 提出单位：国家冶金局 高速工具钢丝 该标准 1982年制订，现参考美国有关标准进行修订。修改了适用范围，即适用于制造偶件针阀等其它用途的圆钢丝；对所有牌号的残余元素铬镍作了规定；明确规定采用电弧炉冶炼以保钢的质量等。索取号为
Examination and approval of national standards (draft for approval) Catalog proposed by: National Metallurgical Bureau of high-speed tool steel This standard was formulated in 1982, is now referring to the United States to amend the relevant standards. Modified the scope of application, that is, applied to the manufacture of even the needle valve and other purposes round wire; all grades of chromium chromium nickel as a residual element; clearly stipulated by the electric arc furnace smelting to ensure the quality of steel. Request number is