China Bidirectional metal GB Standards Search Result |
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1. Ready translated GB standards  and Chinese version GB Standards, you can purchase directly in the web page; After receive your payment, we will send the GB Standards PDF file to your Email within
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2. Other English version GB Standards are not ready translated, only after get your order, then we translate them, time usually need 3-5 days . |
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GB/T 239.2-2023 Metallic materials - wire rods - Part 2: Test methods for bidirectional torsion 金属材料 线材 第2部分：双向扭转试验方法 - 英文版 |
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GB/T 37828-2019 Bidirectional metal to metal sealed butterfly valve for urban heating 城镇供热用双向金属硬密封蝶阀 - 英文版 |
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