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GB/T 20643.2-2025 Specific environmental condition - Environmental test method - Part 2: Artificial environment test method and guidance - Electric and electronic products (including communication products) 
  Issued on: 2025-8-1   Price(USD):
GB/T 20643.2-2008 Specific environment condition - Environmental test methods - Part 2: Artificial environment test method and guidance - Electric and electronic products (including communication prod 
  Issued on: 2008-4-24   Price(USD): 120.0
GB/T 20643.3-2006 Special environmental condition - Environmental test method - Part 3: Artificial environmental test method and guidance - Polymer material  
  Issued on: 2006-11-8   Price(USD): 120.0
GB/T 20643.3-2025 Special environmental condition - Environmental test method - Part 3: Artificial environmental test method and guidance - Polymer material 
  Issued on: 2025-8-1   Price(USD):
GB/T 20644.1-2006 Special environmental condition - Guidance for choosing - Part 1: Metals protection 
  Issued on: 2006-11-08   Price(USD): 120.0
GB/T 20644.1-2025 Special environmental condition - Guidance for choosing - Part 1: Metals protection 
  Issued on: 2025-8-1   Price(USD):
GB/T 20644.2-2025 Special environmental condition - Guidance for choosing - Part 2: Polymer materials 
  Issued on: 2025-8-1   Price(USD):
GB/T 20644.2-2006 Specific environmental condition - Guidance for choosing - Part 2: Polymer materials  
  Issued on: 2006-11-9   Price(USD): 120.0
GB/T 20716.1-2006 Road vehicles - Connectors for the electrical connection of towing and towed vehicles - Part 1: Connectors for braking systems and running gears of vehicles with 24V nominal supply v 
  Issued on: 2006-12-19   Price(USD): 80.0
GB/T 20716.1-2025 Road vehicles - Connectors for the electrical connection of towing and towed vehicles(7-pole) - Part 1: Connectors for braking systems and running gears of vehicles with 24 V nominal supply voltage 
  Issued on: 2025-8-1   Price(USD):
GB/T 20716.2-2006 Road vehicles - Connectors for the electrical connection of towing and towed vehicles - Part 2: Connectors for braking systems and running gears of vehicles with 12V nominal supply v 
  Issued on: 2006-12-19   Price(USD): 70.0
GB/T 20716.2-2025 Road vehicles - Connectors for the electrical connection of towing and towed vehicles(7-pole) - Part 2: Connectors for braking systems and running gears of vehicles with 12 V nominal supply voltage 
  Issued on: 2025-8-1   Price(USD):
GB/T 20805-2025 Determination of acid detergent lignin(ADL)in feeds 
  Issued on: 2025-8-1   Price(USD):
GB/T 20805-2006 Determination of acid detergent lignin in feedstuffs 
  Issued on: 2007-03-26   Price(USD): 60.0
GB/T 21108-2025 Determination of chloramphenicol, thiamphenicol and florfenicol in feeds - High performance liquid chromatography-tandem mass spectrometry 
  Issued on: 2025-8-1   Price(USD):
GB/T 8381.9-2005 Determination of chroamphenicol in feed - Gas chromatography 
  Issued on: 1987-1-13   Price(USD): 110.0
GB/T 20833.2-2025 Rotating electrical machines - Winding insulation - Part 2: On-line partial discharge measurements on the stator winding insulation 
  Issued on: 2025-8-1   Price(USD):
GB/T 20833.2-2016 Rotating electrical machines―The stator winding insulation of rotating electrical machines―Part 2:On-line partial discharge measurements 
  Issued on: 2016-02-24   Price(USD): 550.0
GB/T 21108-2007 Determination of choramphenicol in feeds—High performance liquid chromatography tandem mass spectometry 
  Issued on: 2007-12-18   Price(USD): 180.0
GB/T 21209-2017 AC electrical machines used in power drive systems—Application guide 
  Issued on: 2017-11-01   Price(USD): 990.0
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