GB/T 22091.1-2008現行
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
出版：Standardization Administration of China
專家解讀視頻
基本信息
標準編號： GB/T 22091.1-2008
標準類別：Standard
出版單位：Standardization Administration of China
標準頁數：28
等同采用的國際標準
ISO 7-2:2000 - Modified
