Home / Standards / GBT 228.1-2021 GBT 228.1-2021 Metallic materials — Tensile testing — Part 1: Method of test at room temperature 金属材料 拉伸试验 第1部分:室温试验方法 Standard Type GBT ICS N/A CCS N/A Status N/A Issue Date N/A Implementation N/A Responsible Dept N/A Drafting Unit N/A