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Publication year
Preview GB/T 21645.5-2012 29.6.2012
GB/T 21645.5-2012

Technical requirements for automatically switched optical network - Part 5: User-Network Interface(UNI)

Standard published on 29.6.2012

Selected format:
English, Chinese -
electronic design (pdf) (2110.80 USD)


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2 110.80 USD


in 10 working days
Preview GB/T 21645.6-2009 30.9.2009
GB/T 21645.6-2009

Technical requirements for automatically switched optical network - Part 6: Management plane

Standard published on 30.9.2009

Selected format:
English, Chinese -
electronic design (pdf) (610.80 USD)


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610.80 USD


in 4 working days
Preview GB/T 21645.7-2010 1.12.2010
GB/T 21645.7-2010

Technical requirements for automatically switched optical network Part 7: Automatic discovery

Standard published on 1.12.2010

Selected format:
English, Chinese -
electronic design (pdf) (1318.80 USD)


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1 318.80 USD


in 7 working days
Preview GB/T 21645.8-2012 29.6.2012
GB/T 21645.8-2012

Technical requirements for automatically switched optical network - Part 8: Routing

Standard published on 29.6.2012

Selected format:
English, Chinese -
electronic design (pdf) (1774.80 USD)


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1 774.80 USD


in 10 working days
Preview GB/T 21645.9-2012 31.12.2012
GB/T 21645.9-2012

Technical requirements for automatically switched optical network (ASON) - Part 9: External network to network interface(E-NNI)

Standard published on 31.12.2012

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English, Chinese -
electronic design (pdf) (2638.80 USD)


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2 638.80 USD


in 13 working days
Preview GB/T 21646-2008 11.4.2008
GB/T 21646-2008

Technical specification and testing methods for analog public radio interphone on 400MHz band

Standard published on 11.4.2008

Selected format:
English, Chinese -
electronic design (pdf) (778.80 USD)


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778.80 USD


in 5 working days
Preview GB/T 21647-2008 11.4.2008
GB/T 21647-2008

B-ISDN ATM Adaptation Layer Specification : Type 2 AAL

Standard published on 11.4.2008

Selected format:
English, Chinese -
electronic design (pdf) (ON REQUEST)


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ON REQUEST


Out of stock
Preview GB/T 21648-2023 7.9.2023
GB/T 21648-2023

Industrial dense woven wire cloth

Standard published on 7.9.2023

Selected format:
English, Chinese -
electronic design (pdf) (418.80 USD)


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418.80 USD


in 4 working days
Preview GB/T 21649.1-2024 29.9.2024
GB/T 21649.1-2024

Particle size analysis—Image analysis methods—Part 1:Static image analysis methods

Standard published on 29.9.2024

Selected format:
English, Chinese -
electronic design (pdf) (616.80 USD)


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616.80 USD


in 5 working days
Preview GB/T 21649.2-2025 30.6.2025
GB/T 21649.2-2025

Particle size analysis—Image analysis methods—Part 2:Dynamic image analysis methods

Standard published on 30.6.2025

Selected format:
English, Chinese -
electronic design (pdf) (1276.80 USD)


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1 276.80 USD


in 7 working days

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