GB/T 30268.3-2023 Chinese PDF (GB/T30268.3-2023) GB/T 20424-2025 5 kV DC and below

5 kV DC and below (Chinese: 交流1 kV、直流1

English versions: GB/T 45565-2025

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 16915

GB/T 30268.3-2023 Chinese PDF (GB/T30268.3-2023) GB/T 20424-2025 5 kV DC and belowGB T 30268. 3 2023_Chinese: Information technology Conformance testing for the biometric application programming interface (BioAPI) Part 3: Test assertions for BioAPI frameworks (Chinese: BioAPI 3BioAPI) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 30268. 3 2023