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GB/T 19520.18-2018 Mechanical structures for electronic equipment-Dimensions of mechanical structures of the 482.6 mm (19 in) series-Part 3-106: Adaptation dimensions for subracks and chassis applicable with metric cabinets or racks in accordance with IEC 60917-2-1 $220.00 via email in 1~3 business day valid
GB/T 19520.19-2020 Mechanical structures for electronic equipment—Dimensions of mechanical structures of the 482.6 mm (19 in) series—Part 3-107:Dimensions of subracks and plug-in units,small form factor $495.00 via email in 1~5 business day valid
GB/T 19520.2-2007 Mechanical structure for electronic equipment—Dimensions of mechanical structures of the 482.6mm(19 in) series—Part 2:Cabinets and pitches of rack structures $344.00 via email in 1~3 business day abolished
GB/T 19520.20-2023 Mechanical structures for electrical and electronic equipment—Dimensions of mechanical structures of the 482.6 mm (19 in) series—Part 3-108: Dimensions of R-type subracks and plug-in units $375.00 via email in 1~5 business day valid
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of the 482.6 mm(19in) series―Part 3:Subracks and associated plug-in units $250.00 via email in 1~3 business day superseded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mm(19in)series—Part 4:Subracks and associated plug-in units—Additional dimensions $190.00 via email in 1~3 business day superseded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(19 in) series—Part 5-100:Subracks and associated plug-in units—Design overvies $120.00 via email in 1~3 business day superseded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 21711.10-2025 Electromechanical elementary relays—Part 10: Additional functional aspects and safety requirements for high-capacity relays $930.00 via email in 1~10 business day valid
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