Home / Standards / GB/T 4084-1999 GB/T 4084-1999 Abolished Self-stressing concrete pipe for water 自应力混凝土输水管 Standard Type GBT ICS 91.100.30 CCS Q14 Status 废止 Issue Date 1999-07-30 Implementation 2000-02-01 Responsible Dept 中国建筑材料联合会 Drafting Unit N/A