China Judgment method of c GB Standards Search Result |
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GB/T 13813-2023 Safety test method and judgment rules for friction sparks of metal materials used in coal mines 煤矿用金属材料摩擦火花安全性试验方法和判定规则 - 中英文版 |
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GB/T 41565-2022 Judgment method of clothing silhouette 服装廓形的判定方法 - 中英文版 |
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