Home / Standards / GB/T 29751-2013 GB/T 29751-2013 Active Requirement for adoption and installation of piping compensatory couplings 管路补偿接头选用和安装要求 Standard Type GBT ICS 47.020.30 CCS U50 Status 现行 Issue Date 2013-09-18 Implementation 2014-04-01 Responsible Dept 国家标准委 Drafting Unit N/A