Cemented carbide rods with helical coolant holes
全国有色金属标准化技术委员会(SAC/TC 243)
本标准规定了硬质合金螺旋孔棒材的分类与示意图、技术要求、试验方法、检验规则、标志、包装、运输、贮存、质量证明书及订货单（或合同）内容。本标准适用于加工带内冷孔钻头切削工具用硬质合金螺旋孔棒材（以下简称“螺旋孔棒材”）。
This standard is the original Chinese electronic standard.
After you successfully purchase, we will send the electronic version of this standard to your email address.
If you have successfully purchased, please go to the plug-in category of the store and download the free plug-in installation package.
If you need translation, please contact email: ChineseStandardsLibraryS001@gmail.com.
