Home / Standards / GB/T 28269-2012 GB/T 28269-2012 Active Zigzag spring for seat - Technical specifications 座椅用蛇形弹簧 技术条件 Standard Type GBT ICS 21.160 CCS J26 Status 现行 Issue Date 2012-05-11 Implementation 2012-12-01 Responsible Dept 国家标准委 Drafting Unit N/A