Home / Standards / GB/T 28492-2012 GB/T 28492-2012 Active Button general technical requirements and methods - Copper button 钮扣通用技术要求和检测方法 铜质类 Standard Type GBT ICS 61.040 CCS Y76 Status 现行 Issue Date 2012-06-29 Implementation 2012-11-01 Responsible Dept 中国轻工业联合会 Drafting Unit 中国轻工业联合会