GB/T 45412.2-2025 Chinese PDF (GB /T45412.2-2025) GB/T 45340-2025 English versions: GB/T 33993-2024

English versions: GB/T 33993-2024

3-2024_Chinese: Low-voltage electrical installations - Part 5-54: Selection and erection of electrical equipment - Earthing arrangements and protective conductors (Chinese: 低压电气装置 第5-54部分：电气设备的选择和安装 接地配置和保护导体)

GB/T 45112-2024_Chinese: LTE-based vehicular communication - Technical requirement of security certificate management system (Chinese: 基于LTE的车联网无线通信技术 安全证书管理系统技术要求)

GB/T 17817-2024_Chinese: Determination of vitamin A in feeds - High performance liquid chromatography (Chinese: 饲料中维生素A的测定 高效液相色谱法)

English versions: GB/T 28583-2025

GB/T 45412.2-2025 Chinese PDF (GB /T45412.2-2025) GB/T 45340-2025 English versions: GB/T 33993-2024GB T 45412. 2 2025_Chinese: Optics and photonics Specifications for binoculars, monoculars and spotting scopes Part 2: High performance instruments (Chinese: 2) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 45412. 2 2025