GB/T 17273-2023 Chinese PDF (GB/T17273-2023) GBZ27032-2025 GB/T 17670-2025_Chinese: Unified coding for

GB/T 17670-2025_Chinese: Unified coding for natural stone (Chinese: 天然石材统一编号)

English versions: GB/T 45264-2025

GB/T 44929-2024_Chinese: Specifications for the scientific proposal evaluation of space high-energy astronomy (Chinese: 空间高能天文科学观测提案评估规范)

2-2025_Chinese: Petroleum and natural gas industries - Materials for use in H2S-containing environments in oil and gas production - Part 2: Cracking-resistant carbon and low alloy steels

GB/T 44931-2024_Chinese: Nanotechnologies - Generation of metal nanoparticles for inhalation toxicity testing - Evaporation-condensation method (Chinese: 纳米技术 吸入毒性研究中金属纳米颗粒制备 蒸发-冷凝法)

GB/T 17273-2023 Chinese PDF (GB/T17273-2023) GBZ27032-2025 GB/T 17670-2025_Chinese: Unified coding forGB T 17273 2023_Chinese: Freight containers Equipment data exchange General communication codes (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 17273 2023