GB/T 3688-2025 Chinese PDF (GB /T3688-2025) GB/T 15268-2024 9-2024_Chinese: Specifications for the provision

9-2024_Chinese: Specifications for the provision of personal protective equipment - Part 9: Automobile industry (Chinese: 个体防护装备配备规范 第9部分：汽车)

English versions: GB/T 13748

3-2025_Chinese: Non-destructive testing - Ultrasonic testing block - Part 3: Calibration block for curved surface (Chinese: 无损检测 超声检测试块 第3部分：曲面检测标准试块)

GB/T 44797-2025_Chinese: Microwave hybrid integrated circuits - Synthesized frequency sources (Chinese: 微波混合集成电路 合成频率源)

GB/T 3688-2025 Chinese PDF (GB /T3688-2025) GB/T 15268-2024 9-2024_Chinese: Specifications for the provisionGB T 3688 2025_Chinese: Test method for adhesion performance of V belt cords (Chinese: V) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 3688 2025