标 准 编 号：GB/T 22091.1-2008 简体中文标题：55°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 繁体中文标题：55°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 English Name：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标...