DB21/T 1677-2008
Abolished
Standards
Current Category: CN-DB21 - Liaoning Province
DB21/T 1640.2-2008
Abolished
DB21/T 1640.2-2008 Urban rail transit automatic fare collection system equipment general technical specification Part 2: Ticket validator technical specification
DB21/T 1640.1-2008
Abolished
DB21/T 1640.1-2008 Urban rail transit automatic fare collection system equipment general technical specification Part 1: Ticket vending machine technical specification
DB21/T 1639.2-2008
Abolished
DB21/T 1639.2-2008 Urban rail transit contactless integrated circuit (IC) card and reader/writer general technical specification Part 2: Reader/writer technical specification
DB21/T 1639.1-2008
Abolished
DB21/T 1639.1-2008 Urban rail transit contactless integrated circuit (IC) card and reader/writer general technical specification Part 1: IC card technology specification
DB21/T 1633-2008
Abolished
DB21/T 1633-2008 DB21/T 1633-2008 Propagating Flower Production Management Specification
DB21/T 1634-2008
Abolished
DB21/T 1634-2008 DB21/T 1634-2008 Planting out Tree Production Management Regulations
DB21/T 1630-2008
Abolished
DB21/T 1630-2008 Motorway driving safety weather condition classification
DB21/T 1631-2008
Abolished
DB21/T 1631-2008 Forest Fire Danger Meteorological Conditions Grade
DB21/T 737-1993
Abolished
DB21/T 737-1993 The quality of large flat almonds
DB21/T 735-1993
Abolished