GB/T 45486-2025 Chinese PDF (GB /T45486-2025) GB/T 45448-2025 English versions: GB/T 25820-2025

English versions: GB/T 25820-2025

GB/T 45333-2025_Chinese: Diamond-like carbon films - Determination of friction and wear characteristics of diamond-like carbon films by ball-on-disc method (Chinese: 类金刚石薄膜 球盘法测试类金刚石薄膜的摩擦磨损性能)

GB 45673-2025_Chinese: General specification for safety production standardization of hazardous chemical enterprises (Chinese: 危险化学品企业安全生产标准化通用规范)

English versions: GB/T 45468-2025

English versions: GB/T 45355-2025

GB/T 45486-2025 Chinese PDF (GB /T45486-2025) GB/T 45448-2025 English versions: GB/T 25820-2025GB T 45486 2025_Chinese: Ships and marine technology Ballast water management systems (BWMS) Computational physical modelling and calculations on scaling of UV reactors (Chinese: BWMS ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 45486 2025