Home / Standards / GB/T 4219.1-2008 GB/T 4219.1-2008 Active Plastics piping system for industrial applications - Unplasticized poly(vinyl chloride)(PVC-U) - Specifications for components and the system - Part 1: Pipes 工业用硬聚氯乙烯(PVC-U)管道系统 第1部分：管材 Standard Type GBT ICS 83.140.30 CCS G33 Status 现行 Issue Date 2008-03-24 Implementation 2008-10-01 Responsible Dept 中国轻工业联合会 Drafting Unit N/A