GB/T 22939.1-2025 Chinese PDF (GB /T22939.1-2025) GB 45669.1-2025 GB/T 15604-2024_Chinese: Terminology for dust

GB/T 15604-2024_Chinese: Terminology for dust explosion prevention and protection (Chinese: 粉尘防爆术语)

3-2024_Chinese: Technical requirements and test method for sports field - Part 3: Baseball and softball field (Chinese: 体育场地使用要求及检验方法 第3部分：棒球、垒球场地)

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)

1-2024_Chinese: Methods for chemical analysis of lithium cobalt oxide - Part 1: Determination of cobalt content - EDTA titration and potentiometric titration (Chinese: 钴酸锂化学分析方法 第1部分：钴含量的测定 EDTA 滴定法和电位滴定法)

3-2025_Chinese: Petroleum and natural gas industries - Materials for use in H2S-containing environments in oil and gas production - Part 3: Cracking-resistant CRAs(corrosion-resistant alloys) and other alloys (Chinese: 石油天然气工业 油气开采中用于含硫化氢环境的材料 第3部分：抗开裂耐蚀合金和其他合金)

GB/T 22939.1-2025 Chinese PDF (GB /T22939.1-2025) GB 45669.1-2025 GB/T 15604-2024_Chinese: Terminology for dustGB T 22939. 1 2025_Chinese: Package of household and similar electrical appliances Part 1: General requirements (Chinese: 1) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 22939. 1 2025