GB/T 451.2-2023 Chinese PDF (GB/T451.2-2023) GB/T 27534.2-2025 English versions: GB/T 12979-2024

English versions: GB/T 12979-2024

2-2025_Chinese: Overhead contact charging system for electric buses - Part 2: Charging connection set (Chinese: 电动客车顶部接触式充电系统 第2部分：充电连接装置)

GB/T 44976-2024_Chinese: Technical measures to trade - Guidelines for commenting (Chinese: 技术性贸易措施 评议指南)

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)

GB/T 18024

GB/T 451.2-2023 Chinese PDF (GB/T451.2-2023) GB/T 27534.2-2025 English versions: GB/T 12979-2024GB T 451. 2 2023_Chinese: Paper and board Part 2: Determination of grammage (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 451. 2 2023