Home / Standards / GB/T 20644.2-2006 GB/T 20644.2-2006 Abolished Specific environmental condition - Guidance for choosing - Part 2: Polymer materials 特殊环境条件 选用导则 第2部分：高分子材料 Standard Type GBT ICS 19.040 CCS A21 Status 废止 Issue Date 2006-11-08 Implementation 2007-04-01 Responsible Dept 中国电器工业协会 Drafting Unit N/A