标准介绍
GB/T 22091.1-200855°密封管螺纹量规 第1部分:用于检验圆柱内螺纹与圆锥外螺纹最新版内容查询,英语名称Gauges for pipe threads with 55 degree thread angle where pressure-tight joints are made on the threads - Part 1:Verification of parallel internal and taper external threads,发布日期:2008-06-25,实施日期:2009-01-01,GB/T22091.1-200855°密封管螺纹量规第1部分:用于检验圆柱内螺纹与圆锥外螺纹国家标准最新版免费下载
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