China Valve steel and supe 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
1~3 days.
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 12773-2021 Valve steel and superalloy bars for internal combustion engines 内燃机气阀用钢及合金棒材 - 英文版 |
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GB/T 12773-2008 Valve steel and superalloy bars for internal combustion engines 内燃机气阀用钢及合金棒材 - 英文版 |
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