Home / Standards / GB/T 28799.4-2024 GB/T 28799.4-2024 Active Polyethylene of raised temperature resistance(PE-RT) piping systems for hot and cold water installations—Part 4:Valves 冷热水用耐热聚乙烯(PE-RT)管道系统 第4部分:阀门 Standard Type GBT ICS 83.140.30 CCS G33 Status 现行 Issue Date 2024-03-15 Implementation 2024-10-01 Responsible Dept 中国轻工业联合会 Drafting Unit N/A