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GB 50414-2007 WITHDRAWN

Code of design on fire protection and prevention for iron & steel metallurgy enterprises

WITHDRAWN published on 13.4.2007

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GB 50415-2007 WITHDRAWN

Code for design of inclind shafts and chambers of coal mine

WITHDRAWN published on 21.5.2007

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GB 50416-2007 WITHDRAWN

Code for design of chambers around pit-bottom of coal mine

WITHDRAWN published on 21.5.2007

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GB 50417-2007 WITHDRAWN

Code for design of electric power supply of under the coal mine

WITHDRAWN published on 21.5.2007

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GB 50418-2007 WITHDRAWN

Code for design of prevention and elimination of thermal disaster in coal mines

WITHDRAWN published on 21.5.2007

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GB 50419-2007 WITHDRAWN

Code for design of roadway section and junction of coal mine

WITHDRAWN published on 1.1.2007

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GB 50421-2007 WITHDRAWN

Code for waste dump design of nonferrous metal mines

WITHDRAWN published on 22.6.2007

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GB 50422-2007 WITHDRAWN

Technical code for engineerings of prestressed concrete pavement

WITHDRAWN published on 26.3.2007

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GB 50423-2007 WITHDRAWN

Code for design of oil and gas transportation pipeline crossing engineering

WITHDRAWN published on 23.10.2007

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GB 50424-2007 WITHDRAWN

Code for construction of oil and gas transmission pipeline crossing engineering

WITHDRAWN published on 23.10.2007

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