GB/T 3246.1-2024 Chinese PDF (GB/T3246.1-2024) GB/T 32865-2025 GB/T 20854-2025_Chinese: Corrosion of metals

GB/T 20854-2025_Chinese: Corrosion of metals and alloys - Accelerated testing involving cyclic exposure to salt mist

GB/T 31790-2025_Chinese: Detection and identification of main viroids for Solanaceae crops (Chinese: 茄科作物重要类病毒检测鉴定方法)

GB/T 15566

9-2023_Chinese: Hand-held non-electric power tools - Safety requirements - Part 9: Die grinders (Chinese: 手持式非电类动力工具 安全要求 第9部分：模具用砂轮机)

7-2024_Chinese: Information technology - High efficiency multimedia coding - Part 7: Image format (Chinese: 信息技术 高效多媒体编码 第7部分：图片文件格式)

GB/T 3246.1-2024 Chinese PDF (GB/T3246.1-2024) GB/T 32865-2025 GB/T 20854-2025_Chinese: Corrosion of metalsGB T 3246. 1 2024_Chinese: Inspection method for structure of wrought aluminium and aluminium alloy products Part 1: Inspection method for microstructure (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 3246. 1 2024