GB/T 24045-2024 Chinese PDF (GB /T24045-2024) GB/T 23723.5-2025 GB/T 21307-2025_Chinese: Roller gin (Chinese:

GB/T 21307-2025_Chinese: Roller gin (Chinese: 皮辊轧花机)

English versions: GB/T 29389-2024

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)

English versions: GB/T 11918

and the use of cast irons (Chinese: 石油天然气工业 油气开采中用于含硫化氢环境的材料 第2部分：抗开裂碳钢、低合金钢和铸铁)

GB/T 24045-2024 Chinese PDF (GB /T24045-2024) GB/T 23723.5-2025 GB/T 21307-2025_Chinese: Roller gin (Chinese:GB T 24045 2024_Chinese: Environmental management Eco efficiency assessment of product systems Principles, requirements and guidelines (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 24045 2024