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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 11357-2020 Quality, roughness and balance of transmission pulleys 带轮的材质、表面粗糙度及平衡 - 英文版 |
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GB/T 11357-2008 Quality, roughness and balance of transmission pulleys 带轮的材质、表面粗糙度及平衡 - 英文版 |
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