Home / Standards / GB/T 29641-2013 GB/T 29641-2013 Active Poly(methyl methacrylate)(PMMA) cast noise barriers 浇铸型聚甲基丙烯酸甲酯声屏板 Standard Type GBT ICS 83.080.20 CCS G32 Status 现行 Issue Date 2013-09-06 Implementation 2014-01-31 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A