Home / Standards / GB/T 20910-2007 GB/T 20910-2007 Abolished Temperature/pressure safety valve for hot water supply system 热水系统用温度压力安全阀 Standard Type GBT ICS 23.060.99 CCS J16 Status 废止 Issue Date 2007-04-18 Implementation 2007-11-01 Responsible Dept 中国机械工业联合会 Drafting Unit 中国机械工业联合会