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English versions: YY/T 1926
English versions: GB/T 34571-2024
GB/T 45196-2025_Chinese: Technical guidelines for environmental quality survey of agricultural production areas (Chinese: 农产品产地环境质量调查技术指南)
English versions: GB/T 21220-2024
GB/T 45026-2024_Chinese: Specification for side scan sonar oceanic survey (Chinese: 侧扫声呐海洋调查规范)
GB/T 31211.1-2024 Chinese PDF (GB/T31211.1-2024) GB/T 27612.4-2023 English versions: YY/T 1926GB T 31211. 1 2024_Chinese: Non destructive testing Ultrasonic guided wave testing Part 1: General principle (Chinese: 1) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 31211. 1 2024
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