China Determination of 1-d 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 12009.4-2016 (Plastics - Aromatic isocyanates for the production of polyurethane - Part 4: Determination of isocyanate content - amendment No. 1) 塑料聚氨酯生产用芳香族异氰酸酯第4部分：异氰酸根含量的测定《第1号修改单》 - 中英文版

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