Home / Standards / GB/T 12712-1991 GB/T 12712-1991 Abolished The requirements for supervision of recovery of condensate from steam heating system and technique ofautomatic steam traps 蒸汽供热系统凝结水回收及蒸汽疏水阀技术管理要求 Standard Type GBT ICS 91.140.10 CCS F01 Status 废止 Issue Date 1991-01-28 Implementation 1991-12-01 Responsible Dept 国家标准委 Drafting Unit N/A