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GB/T 45344-2025_Chinese: General technical requirements for fabricated and prefabricated gas piping used in buildings (Chinese: 建筑用装配式预制燃气管道通用技术条件)
1-2025_Chinese: Packaging - Plastics drums - Part 1: Removable head(open head) drums with a nominal capacity of 113
English versions: GB/T 45631-2025
GB/T 45450-2025_Chinese: Revert materials for superalloy - Terminology and classification (Chinese: 再生高温合金原料 术语和分类)
GB 21257-2024 Chinese PDF GB/T 45588-2025 GB/T 45344-2025_Chinese: General technical requirementsGB 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
