GB/T 4392-1995.Sugging open-end wrenches and slugging box wenches. 1主题内容与适用范围 GB/T 4392规定了敲击呆扳手和敲击梅花...
GB国家标准
GB国家标准
GB国家标准
GB/T 4392-2019 敲击呆扳手和敲击梅花扳手
GB/T 4392-2019.Slugging open-end wrenches and slugging box-end wrenches. 4.3 外观 4.3.1敲击扳手的表面应进行发黑或其他...