Home / Standards / GB/T 34190-2017 GB/T 34190-2017 Active Surface coating weight (thickness) of electrical steel—X-ray spectrometric method 电工钢表面涂层的重量(厚度) X射线光谱测试方法 Standard Type GBT ICS 77.040.99 CCS H21 Status 现行 Issue Date 2017-09-07 Implementation 2018-06-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A