Home / Standards / GB/T 26024 GB/T 26024 Active Seamless copper and copper alloys tube for valves on air-conditioning and refrigeration system 空调与制冷系统阀件用铜及铜合金无缝管 Standard Type GBT ICS 77.150.30 CCS H62 Status 现行 Issue Date 2021-12-31 Implementation 2022-07-01 Responsible Dept 中国有色金属工业协会 Drafting Unit 中国有色金属工业协会