GB/T 18688-2023 Chinese PDF (GB/T18688-2023) GB/T 44965-2024 20-2025_Chinese: Methods for chemical analysis

20-2025_Chinese: Methods for chemical analysis of tungsten concentrates - Part 20: Determination of mercury content - Solid sampling and direct mercury analysis method (Chinese: 钨精矿化学分析方法 第20部分：汞含量的测定 固体进样直接测定法)

types of cargo

1 specifications (Chinese: 信息技术 抽象语法记法一（ASN

GBZ45064-2024_Chinese: Equipment for general lighting purposes - Stroboscopic effects - Objective test method (Chinese: 普通照明用设备 频闪效应 客观试验方法)

English versions: GB/T 12428-2023

GB/T 18688-2023 Chinese PDF (GB/T18688-2023) GB/T 44965-2024 20-2025_Chinese: Methods for chemical analysisGB T 18688 2023_Chinese: Agricultural irrigation equipment Pressure losses in irrigation valves Test method (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 18688 2023