Home / Standards / GB/T 13982-2011 GB/T 13982-2011 Abolished The reflective and transmitting projection screens 反射和透射放映银幕 Standard Type GBT ICS 37.060.10 CCS N42 Status 废止 Issue Date 2011-10-31 Implementation 2012-01-01 Responsible Dept 中国机械工业联合会 Drafting Unit 中国机械工业联合会