GB/T 44914-2024 Chinese PDF (GB /T44914-2024) GB/T 19212.5-2025 GB/T 20405

GB/T 20405

unvulcanized - Determinations using a shearing-disc viscometer - Part 2: Determinations of pre-vulcanization characteristics (Chinese: 未硫化橡胶 用圆盘剪切黏度计进行测定 第2部分：初期硫化特性的测定)

GB/T 12385-2025_Chinese: Standard test methods for sealability of gaskets for pipe flanges (Chinese: 管法兰用垫片密封性能试验方法)

GB/T 21499-2024_Chinese: Inspection of grain and oils - Determination of the potential milling yield from paddy and from husked rice (Chinese: 粮油检验 稻谷和糙米潜在出米率测定方法)

GB/T 21200-2024_Chinese: Toner used in dry dual-component developer for laser printer (Chinese: 激光打印机干式双组分显影剂用墨粉)

GB/T 44914-2024 Chinese PDF (GB /T44914-2024) GB/T 19212.5-2025 GB/T 20405GB T 44914 2024_Chinese: Hetianyu grading (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 44914 2024