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GB/T 19520.21-2023 Mechanical structures for electrical and electronic equipment—Dimensions of mechanical structures of the 482.6 mm (19 in) series—Part 3-109: Dimensions of chassis for embedded computing devices $375.00 via email in 1~5 business day valid
GB/T 19520.22-2023 Mechanical structures for electrical and electronic equipment—Dimensions of mechanical structures of the 482.6 mm (19 in) series—Part 3-110: Residential racks and cabinets for smart houses $375.00 via email in 1~5 business day valid
GB/T 19520.3-2004 Mechanical structures for electronic equipment―Dimensions of mechanical structures of the 482.6 mm(19in) series―Part 3:Subracks and associated plug-in units $250.00 via email in 1~3 business day superseded
GB/T 19520.4-2004 Mechanical structures for electronic equipoment—Dimensions of mechanical structures of the 482.6 mm(19in)series—Part 4:Subracks and associated plug-in units—Additional dimensions $190.00 via email in 1~3 business day superseded
GB/T 19520.5-2004 Mechanical structures for electronic equipment—Dimensions of mechanical structures of the 482.6 mm (19 in) series—Part 5-100:Subracks and associated plug-in units—Design overvies $120.00 via email in 1~3 business day superseded
GB/T 19520.6-2004 Mechanical structures for electronic equipemnt―Dimensions of mechanical structures of the 482.6mm(19in)series―Part 5-101:Subracks and associated plug-in nuits―Injector/extractor handle $120.00 via email in 1~3 business day superseded
GB/T 19520.7-2004 Mechanical structures for electronic equipemnt—Dimensions of mechanical structures of the 482.6mm(19in)series—Part 5-102:Subracks and associated plug-in units—Electromagnetic shielding provision $120.00 via email in 1~3 business day superseded
GB/T 19520.8-2004 Mechanical structures for electronic equipemnt—Dimensions of mechanical structures of the 482.6mm(19in)series—Part 5-103:Subracks and associated plug -in units—Electrostatic discharge protection $120.00 via email in 1~3 business day abolished
GB/T 19520.9-2004 Mechanical structures for electronic equipment―Dimensions of mechanical structures of the 482.6mm(19in)series―Part 5-104:Subracks and associated plug-in units―Keying $150.00 via email in 1~3 business day superseded
GB/T 20296-2012 Mnemonics and symbols for integrated circuits $450.00 via email in 1~3 business day valid
GB/T 20515-2006 Semiconductor devices - Integrated circuits - Part 5: Semicustom integrated circuits $190.00 via email in 1~3 business day valid
GB/T 20870.10-2023 Semiconductor devices—Part 16-10: Technology Approval Schedule for monolithic microwave integrated circuits $800.00 via email in 1~5 business day valid
GB/T 21548-2008 Methods of measurement of the high speed semiconductor lasers directly modulated for optical fiber communication systems $370.00 via email in 1~5 business day superseded
GB/T 21548-2021 Methods of measurement of the high speed semiconductor lasers directly modulated for optical fiber communication systems $225.00 via email in 1~3 business day valid
GB/T 21711.1-2023 Electromechanical elementary relays―Part 1:General and safety requirements $1290.00 via email in 1~5 business day valid
GB/T 21711.201-2024 Electromechanical elementary relays—Part 2-1: Reliability—Procedure for the verification of B10 values $255.00 via email in 1~3 business day valid
GB/T 21711.7-2018 Electromechanical elementary relays—Part 7:Test and measurement procedures $990.00 via email in 1~5 business day valid
GB/T 22453-2025 Non-linear optical crystal devices measuring method for laser $300.00 via email in 1~5 business day to be valid
GB/T 22690-2008 General mechanical structures for data communication equipment - Cabinet and subrack $270.00 via email in 1~3 business day valid
GB/T 22764.1-2008 Cabinets for low-voltage switchgear—Part 1:Generic specification $150.00 immediately valid
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