Home / Standards / GB/T 31539-2015 GB/T 31539-2015 Active Pultruded fiber reinforced polymer composites structural profiles 结构用纤维增强复合材料拉挤型材 Standard Type GBT ICS 83.120 CCS Q23 Status 现行 Issue Date 2015-05-15 Implementation 2016-02-01 Responsible Dept 中国建筑材料联合会 Drafting Unit N/A