Home / Standards / GB/T 29291-2012 GB/T 29291-2012 Active Button general technical requirements and testing methods - Zinc alloy buttons 钮扣通用技术要求和检测方法 锌合金类 Standard Type GBT ICS 61.040 CCS Y76 Status 现行 Issue Date 2012-12-31 Implementation 2013-09-01 Responsible Dept 中国轻工业联合会 Drafting Unit N/A