GB - Chinese national standards

Tyre valvesPart 4Tubeless clamp-in valves

Available languages: English, Chinese

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Tyre valves—Part 5: Tyre valves for large core chamber

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Available design: electronic design (pdf), Print design

Tyre valves—Part 6:Cores

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Tyre valves—Part 7:Components

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Information technology--Data interchange on 90 mm flexible disk cartridges using modified frequency modulation recording at 31 831 ftprad on 80 tracks on each side--GB type 303

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Available design: electronic design (pdf), Print design

Requirements and test methods for printed Chinese character recognition system

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Information technology--Information Resource Dictionary System(IRDS) services interface

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Information technology--Open Systems Interconnection--Network layer security protocol

Available languages: English, Chinese

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Information security technology—Modes of operation for a block cipher

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Available design: electronic design (pdf), Print design

Information technology--Open Systems Interconnection--Upper layers security model

Available languages: English, Chinese

Available design: electronic design (pdf), Print design