China Rubber，raw and unval GB Standards Search Result

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 .


	GB/T 12828-2006 Rubber，raw and unvalcanized compounded - Determination of plasticity number and recovery number - Parallel plate method 生胶和未硫化混炼胶塑性值及复原值的测定平行板法 - 中英文版

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