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control and laboratory use - Part 2: Particular requirements for laboratory equipment for the heating of materials (Chinese: 测量、控制和实验室用电气设备的安全要求 第2部分：材料加热用实验室设备的特殊要求)
GB/T 21219-2023_Chinese: Magnetic materials - Classification (Chinese: 磁性材料 分类)
GB/T 20554-2024_Chinese: Kelp (Chinese: 海带)
GB/T 15622-2023_Chinese: Hydraulic cylinder - Test method (Chinese: 液压缸 试验方法)
English versions: GB/T 9981-2025
GB/T 22513-2023 Chinese PDF (GB/T22513-2023) GB/T 25367-2024 control and laboratory use -GB T 22513 2023_Chinese: Petroleum and natural gas drilling and production equipment Wellhead and tree equipment (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 22513 2023
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