GB/T 43264-2023 Chinese PDF (GB/T43264-2023) GB/T 21295-2024 fittings and flanges for pipeline

fittings and flanges for pipeline transportation systems - Part 4: Cold bends (Chinese: 石油天然气工业 管道输送系统用弯管、管件和法兰 第4部分：冷弯管)

English versions: GB/T 45334-2025

GB/T 45363-2025_Chinese: Writing instruments - Terminology (Chinese: 笔类产品 术语)

English versions: GB/T 19963

English versions: GB/T 13284-2025

GB/T 43264-2023 Chinese PDF (GB/T43264-2023) GB/T 21295-2024 fittings and flanges for pipelineGB T 43264 2023_Chinese: Measuring methods of the surface magnetic field distribution for permanent magnets (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 43264 2023