GB/T 42513.4-2023 Chinese PDF (GB/T42513.4-2023) GB/T 42151.4-2024 English versions: GB/T 45456-2025

English versions: GB/T 45456-2025

GB/T 2879-2024_Chinese: Hydraulic fluid power - Cylinders - Dimensions and tolerances of housings for single-acting piston and rod seals in reciprocating applications (Chinese: 液压传动 液压缸 往复运动活塞和活塞杆单向密封圈沟槽的尺寸和公差)

GB/T 17664-2024_Chinese: Charcoal (Chinese: 木炭)

English versions: GB/T 45044-2024

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 42513.4-2023 Chinese PDF (GB/T42513.4-2023) GB/T 42151.4-2024 English versions: GB/T 45456-2025GB T 42513. 4 2023_Chinese: Methods for chemical analysis of nickel alloys Part 4: Determination of silicon content Nitrous oxide flame atomic absorption spectrometry and molybdenum blue spectrophotometry (Chinese: 4 ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 42513. 4 2023