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Standard
| YB/T 4263-2011 Button bits with special threads (English Version) |
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Detail of YB/T 4263-2011
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Introduction of YB/T 4263-2011
本标准规定了凿岩用DT58、HT60异形螺纹球齿钎头的订货内容、代号、类型、型号、外形、螺纹、尺寸及允许偏差、技术要求、试验方法、检验规则、包装、标志及质量证明书。
本标准适用于凿岩用直径为89mm～152mm的DT58和HT60异形螺纹硬质合金球齿钎头。
Contents of YB/T 4263-2011