Home / Standards / GB/T 20254.1-2015 GB/T 20254.1-2015 Active Copper and copper alloy strips for lead frame—Part 1: Plane strip 引线框架用铜及铜合金带材 第1部分:平带 Standard Type GBT ICS 77.150.30 CCS H62 Status 现行 Issue Date 2015-09-11 Implementation 2016-04-01 Responsible Dept 中国有色金属工业协会 Drafting Unit N/A