GB/T 31461-2024 Chinese PDF (GB/T31461-2024) GB/T 20405.3-2024 English versions: GB/T 21667-2024

English versions: GB/T 21667-2024

GB/T 7143-2025_Chinese: Methods for chemical analysis of silica sand for foundry (Chinese: 铸造用硅砂化学分析方法)

46-2024_Chinese: Requirements of the greenhouse gas emissions accounting and reporting - Part 46: Waste battery treatment and disposal enterprise (Chinese: 温室气体排放核算与报告要求 第46部分：废弃电池处理处置企业)

GB 20031-2024_Chinese: Foam fire extinguishing equipment (Chinese: 泡沫灭火设备)

GB/T 31461-2024 Chinese PDF (GB/T31461-2024) GB/T 20405.3-2024 English versions: GB/T 21667-2024GB T 31461 2024_Chinese: Guide for run back and fast cut back control in fossil fuel power plant (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 31461 2024