Home / Standards / GB/T 32020-2015 GB/T 32020-2015 Active Polyvinyl butyral interlayer for laminated glass 夹层玻璃用聚乙烯醇缩丁醛中间膜 Standard Type GBT ICS 83.140.10 CCS G33 Status 现行 Issue Date 2015-09-11 Implementation 2016-04-01 Responsible Dept 中国轻工业联合会 Drafting Unit N/A