Home / Standards / GB/T 20235-2006 GB/T 20235-2006 Active Technical specification for silver-tin oxide electric contact materials 银氧化锡电触头材料技术条件 Standard Type GBT ICS 29.120.99 CCS K14 Status 现行 Issue Date 2006-04-30 Implementation 2006-12-01 Responsible Dept 中国电器工业协会 Drafting Unit N/A