Home / Standards / LD/T 99.9-1997 LD/T 99.9-1997 Active 市政工程劳动定额 厂站工程 Standard Type LD ICS N/A CCS N/A Status Active Issue Date 1997-04-23 Implementation 1997-07-01 Centralized Committee 劳动部 Issuing Authority 劳动部