LD/T 99.9-1997 LD/T 99.9-1997 Municipal Engineering Labor Estimate Standard - Plant and Station Engineering

LD/T 99.1-1997 LD/T 99.1-1997 Municipal Engineering Labor Standardization: Demolition and Temporary Works LD/T 99.2-1997 LD/T 99.2-1997 Municipal Engineering Labor Standard Material Transport and Processing LD/T 99.3-1997 LD/T 99.3-1997 Municipal Engineering Labor Standard for Establishing Workforce Schedules - Earthwork and Rock-fill Engineering LD/T 99.4-1997 LD/T 99.4-1997 Municipal Engineering Labor Standard - Pile Foundation Engineering LD/T 99.5-1997 LD/T 99.5-1997 Municipal Engineering Labor Standard Road Engineering LD/T 99.6-1997 LD/T 99.7-1997 LD/T 99.8-1997 Urban construction labor quota Water supply and drainage engineering LD/T 99.10-1997 Urban construction labor quota and hot water supply pipeline installation project LD/T 99.11-1997 LD/T 99.11-1997 Municipal Engineering Labor Standard - Natural Gas Pipeline Network Installation Engineering LD/T 99.12-1997 LD/T 99.12-1997 Municipal Engineering Labor Standard - Tunnel Engineering LD/T 99.13-1997 Urban Construction Labor Estimate Maintenance and Maintenance Project