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English versions: GB/T 45339-2025
nickel alloys and cobalt alloys investment castings - Visual testing of surface quality (Chinese: 熔模铸钢件、镍合金铸件和钴合金铸件 表面质量目视检测方法)
GB/T 45449-2025_Chinese: Revert materials for powder metallurgy superalloy (Chinese: 再生粉末高温合金原料)
4-2025_Chinese: IPv4/IPv6 network security protection technical specifications - Part 4: Content delivery network (Chinese: IPv4/IPv6网络安全防护技术规范 第4部分：内容分发网络)
GB/T 44973-2024_Chinese: Requirements and evaluation specification for ice sport event (Chinese: 冰上运动赛事活动要求及评估规范)
GB/T 45486-2025 Chinese PDF (GB /T45486-2025) GB/T 45126-2025 English versions: GB/T 45339-2025GB 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
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