GB/T 44953-2024 Chinese PDF (GB /T44953-2024) GB 19081-2025 1-2025_Chinese: Cards and security devices

1-2025_Chinese: Cards and security devices for personal identification - Test methods - Part 1: General characteristics (Chinese: 卡及身份识别安全设备 测试方法 第1部分：一般特性)

setting time and soundness of the Portland cement (Chinese: 水泥标准稠度用水量、凝结时间与安定性检验方法)

English versions: GB/T 3920-2024

GB/T 45012-2024_Chinese: Thermal insulating products for industrial installations - Determination of the coefficient of linear thermal expansion at sub-ambient temperatures (Chinese: 工业用绝热制品 低温线性热膨胀系数的测定)

English versions: GB/T 44879-2024

GB/T 44953-2024 Chinese PDF (GB /T44953-2024) GB 19081-2025 1-2025_Chinese: Cards and security devicesGB T 44953 2024_Chinese: Technical specification for lightning disaster investigation (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 44953 2024