GB/T 23031.4-2023 Chinese PDF (GB/T23031.4-2023) GB/T 45299-2025 GB/T 3045-2024_Chinese: Conventional abrasive -

GB/T 3045-2024_Chinese: Conventional abrasive - Chemical analysis of silicon carbide (Chinese: 普通磨料 碳化硅化学分析方法)

GB/T 17867-2023_Chinese: Location of hand controls

GB/T 45182-2025_Chinese: Test procedures of gasket parameters based on leakage rate for the pipe flange joints (Chinese: 基于泄漏率的管法兰用垫片参数测试方法)

1）第2部分：信息客体规范)

GB/T 23031.4-2023 Chinese PDF (GB/T23031.4-2023) GB/T 45299-2025 GB/T 3045-2024_Chinese: Conventional abrasive -GB T 23031. 4 2023_Chinese: Industrial internet platform Application and implementation guide Part 4: Networked collaboration (Chinese: 4) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 23031. 4 2023