Home / Standards / GB/T 1048-2005 GB/T 1048-2005 Abolished Pipework components-Definition and selection of PN 管道元件--PN(公称压力)的定义和选用 Standard Type GBT ICS 23.040.60 CCS J15 Status 废止 Issue Date 2005-01-13 Implementation 2005-08-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A