GB/T 45259-2025 Chinese PDF (GB /T45259-2025) GB/T 45077-2024 GB/T 45134-2025_Chinese: Petroleum drilling and

GB/T 45134-2025_Chinese: Petroleum drilling and production equipment - Near-bit geosteering drilling systems (Chinese: 石油天然气钻采设备 近钻头地质导向钻井系统)

English versions: GB/T 45077-2024

GB/T 45140-2025_Chinese: Technical guideline for monitoring and effectiveness evaluation of mangrove ecological restoration (Chinese: 红树林生态修复监测和效果评估技术指南)

4-2025_Chinese: Assembled spectacles - Part 4: Multifocal and power-variation near-vision spectacles (Chinese: 配装眼镜 第4部分：多焦和渐变焦老视成镜)

4-2024_Chinese: Chemical analysis methods of mixed rare earth oxide of ion-absorption rare earth ore - Part 4: Determination of iron trioxide content - Inductively coupled plasma atomic emission spectrometry (Chinese: 离子型稀土矿混合稀土氧化物化学分析方法 第4部分：三氧化二铁含量的测定 电感耦合等离子体发射光谱法)

GB/T 45259-2025 Chinese PDF (GB /T45259-2025) GB/T 45077-2024 GB/T 45134-2025_Chinese: Petroleum drilling andGB T 45259 2025_Chinese: Travel risk management Guidance for organizations (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 45259 2025