GB/T 2521.1-2016全工艺冷轧电工钢第1部分:晶粒无取向钢带(片)国家标准
英文:Cold-rolled electrical steel delivered in the fully-processed state—Part 1: Grain non-oriented steel strip(sheet) GB/...
英文:Cold-rolled electrical steel delivered in the fully-processed state—Part 1: Grain non-oriented steel strip(sheet) GB/...