GB 31830-2024 Chinese PDF GB/T 45467-2025 GB/T 28029
$34.95
Description
GB/T 28029
English versions: GB 44172-2024
English versions: GB/T 45036-2024
GB/T 18029
GB 31830-2024 Chinese PDF GB/T 45467-2025 GB/T 28029GB 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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