GB/T 17241.2-2024 Chinese PDF (GB/T17241.2-2024) GB/T 45287-2025 GB 19577-2024_Chinese: Minimum allowable values

GB 19577-2024_Chinese: Minimum allowable values of the energy efficiency and energy efficiency grades for heat pumps and water chillers (Chinese: 热泵和冷水机组能效限定值及能效等级)

GB/T 44937

English versions: GB 3836

40-2025_Chinese: Requirements of the greenhouse gas emissions accounting and reporting - Part 40: Building waterproof materials enterprises (Chinese: 温室气体排放核算与报告要求 第40部分：建筑防水材料生产企业)

1-2025_Chinese: Information technology - ASN

GB/T 17241.2-2024 Chinese PDF (GB/T17241.2-2024) GB/T 45287-2025 GB 19577-2024_Chinese: Minimum allowable valuesGB T 17241. 2 2024_Chinese: Cast iron pipe flanges Part 2: Class designated (Chinese: 2Class) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 17241. 2 2024