Home / Standards / GB/T 27710-2011 GB/T 27710-2011 Abolished Floor drain 地漏 Standard Type GBT ICS 23.020.99 CCS Y71 Status 废止 Issue Date 2011-12-30 Implementation 2012-07-01 Responsible Dept 中国轻工业联合会 Drafting Unit 中国轻工业联合会