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GB 31830-2024 Chinese PDFGB 31830 2024_Chinese: Norm of energy consumption per unit production of toluene diisocyanate and diphenyl methane diisocyanate (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB 31830 2024
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GB 31830-2024 Chinese PDF
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27617964863
US$ 39.00
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