GB/T 19520.22-2023 Chinese PDF (GB/T19520.22-2023) GB/T 45217-2025 GB/T 45599-2025_Chinese: Liquid silicone rubber

GB/T 45599-2025_Chinese: Liquid silicone rubber - Self-lubricating type for connectors (Chinese: 液体硅橡胶 连接器用自润滑型)

5-2024_Chinese: Safety requirements for electrical equipment for measurement

2-2024_Chinese: Acoustics - Calibration of hydrophones - Part 2: Procedures for low frequency pressure calibration (Chinese: 声学 水听器校准 第2部分：低频声压场校准方法)

GB/T 15241

GB/T 19520.22-2023 Chinese PDF (GB/T19520.22-2023) GB/T 45217-2025 GB/T 45599-2025_Chinese: Liquid silicone rubberGB T 19520. 22 2023_Chinese: 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 (Chinese: 482. 6 mm(19 in) 3 110) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 19520. 22 2023