GB 21257-2024 Chinese PDF GB/T 45183-2025 GB/T 45162
$39.00
Description
GB/T 45162
English versions: GB 45188-2024
English versions: GB 45672-2025
29-2024_Chinese: Methods for chemical analysis of titanium sponge
71-2024_Chinese: Communication networks and systems for power utility automation - Part 7-1: Basic communication structure - Principles and models (Chinese: 电力自动化通信网络和系统 第7-1部分：基本通信结构 原理和模型)
GB 21257-2024 Chinese PDF GB/T 45183-2025 GB/T 45162GB 21257 2024_Chinese: Norm of energy consumption per unit production of caustic soda, PVC, methane chloride (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB 21257 2024
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