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Chinese Standard: GB/T 12773-2008

Valve steel and superalloy bars for internal combustion engines

MOD  ISO 683-15:1992

全国钢标准化技术委员会

本标准规定了内燃机气阀用钢及高温合金棒材(以下简称棒材)的分类、订货内容、尺寸、外形及重量、技术要求、试验方法、检验规则、包装、标志和质量证明书。
本标准适用于制造内燃机气阀用直径不大于120 mm的热轧、锻制棒材和直径不大于25 mm的冷拉钢、银亮钢及合金棒材。

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