GB/T 25993-2023 Chinese PDF (GB/T25993-2023) GB/T 45648.1-2025 GB/T 31015-2024_Chinese: Public information guidance

GB/T 31015-2024_Chinese: Public information guidance systems - Design and setting principles and requirements for the consideration of accessible needs (Chinese: 公共信息导向系统 基于无障碍需求的设计与设置原则和要求)

GB/T 44935-2024_Chinese: Nanotechnologies - Measurement of the number of layers of MoS2 flakes - Raman spectroscopy method (Chinese: 纳米技术 二硫化钼薄片的层数测量 拉曼光谱法)

GB/T 17664-2024_Chinese: Charcoal (Chinese: 木炭)

GB/T 12604

GB/T 45450-2025_Chinese: Revert materials for superalloy - Terminology and classification (Chinese: 再生高温合金原料 术语和分类)

GB/T 25993-2023 Chinese PDF (GB/T25993-2023) GB/T 45648.1-2025 GB/T 31015-2024_Chinese: Public information guidanceGB T 25993 2023_Chinese: Permeable paving bricks and permeable paving flags (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 25993 2023