GB/T 1149.17-2023 Chinese PDF (GB/T1149.17-2023) GB/T 45587-2025 GB/T 45333-2025_Chinese: Diamond-like carbon films

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)

tidal and other water current converters - Part 4: Specification for establishing qualification of new technology (Chinese: 海洋能 波浪能、潮流能及其他水流能转换装置 第4部分：新技术鉴定)

English versions: GB/T 10476-2024

GB/T 11047

GB/T 1149.17-2023 Chinese PDF (GB/T1149.17-2023) GB/T 45587-2025 GB/T 45333-2025_Chinese: Diamond-like carbon filmsGB T 1149. 17 2023_Chinese: Internal combustion engines Piston rings Part 17: Coil spring loaded oil control rings made of steel (Chinese: 17) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 1149. 17 2023