GB/T 45412.2-2025 Chinese PDF (GB /T45412.2-2025) GB/T 45340-2025 English versions: GB/T 1480-2025

English versions: GB/T 1480-2025

English versions: GB/T 31900-2024

GB/T 45016-2024_Chinese: Test methods for mechanical automatic tensioner of accessory belt drive system of engine (Chinese: 发动机附件带传动系统机械式自动张紧轮试验方法)

GB/T 45536-2025_Chinese: Sensory analysis laboratory - Guidance for quality control (Chinese: 感官分析实验室 质量控制指南)

GB 17918-2025_Chinese: Safety specification for dust explosion protection in bulk grain loading and unloading system in port (Chinese: 港口散粮装卸系统粉尘防爆安全规范)

GB/T 45412.2-2025 Chinese PDF (GB /T45412.2-2025) GB/T 45340-2025 English versions: GB/T 1480-2025GB 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