Home / Standards / GB/T 22817-2008 GB/T 22817-2008 Active Vulcanized paper core 钢纸管 Standard Type GBT ICS 85.080 CCS Y33 Status 现行 Issue Date 2008-12-30 Implementation 2009-09-01 Responsible Dept 中国轻工业联合会 Drafting Unit N/A