China Sulphur Black 3B、4B、 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 1655-2013 Sulphur Black 3B、4B、3BR、2RB(Sulphur Black BN、BRN、B2RN、RN) 硫化黑3B、4B、3BR、2RB(硫化黑BN、BRN、B2RN、RN) - 中英文版 |
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