Home / Standards / GB/T 20914.2-2007 GB/T 20914.2-2007 Active Stamping dies - Gas springs - Part 2: Specification of accessories 冲模 氮气弹簧 第2部分：附件规格 Standard Type GBT ICS 25.120.30 CCS J46 Status 现行 Issue Date 2007-03-30 Implementation 2007-09-01 Responsible Dept 国家标准委 Drafting Unit 国家标准委