GB/T 28629-2024 Chinese PDF (GB/T28629-2024) GB/T 18964.2-2025 English versions: GB/T 45608-2025

English versions: GB/T 45608-2025

2-2024_Chinese: Small craft - Determination of maximum propulsion power rating using manoeuvring speed - Part 2: Craft with a length of hull between 8 m and 24 m (Chinese: 小艇 用操纵速度确定最大推进额定功率 第2部分：艇体长度在8m~24m之间的艇)

5-2024_Chinese: Proton exchange membrane fuel cell - Part 5: Test method for membrane electrode assembly (Chinese: 质子交换膜燃料电池 第5部分：膜电极测试方法)

GB/T 45639-2025_Chinese: Exchange header envelope technical specification (Chinese: 交换标头封装包技术规范)

1编码规则 第1部分:基本编码规则（BER）、正则编码规则（CER）和非典型编码规则（DER）规范)

GB/T 28629-2024 Chinese PDF (GB/T28629-2024) GB/T 18964.2-2025 English versions: GB/T 45608-2025GB T 28629 2024_Chinese: Methods for chemical analysis of free silicon dioxide in cement clinker (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 28629 2024