Home / Standards / GB/T 26147-2010 GB/T 26147-2010 Active Specification for ball of ball valve 球阀球体 技术条件 Standard Type GBT ICS 23.060.99 CCS J16 Status 现行 Issue Date 2011-01-14 Implementation 2011-10-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A