Home / Standards / GB/T 18475-2001 GB/T 18475-2001 Active Thermoplastics materials for pipes and fittings for pressure applications classification and designation--Overall service(design) coefficient 热塑性塑料压力管材和管件用材料分级和命名 总体使用(设计)系数 Standard Type GBT ICS 23.040.20 CCS G33 Status 现行 Issue Date 2001-10-24 Implementation 2002-05-01 Responsible Dept 中国轻工业联合会 Drafting Unit N/A