GB/T 18998.2-2022工业用氯化聚氯乙烯(PVC-C)管道系统第2部分:管材标准
英文标题:Chlorinated poly(vinyl chloride)(PVC-C)piping systems for industrial applications—Part 2:Pipes GB/T 18998.2-2022介绍:...
英文标题:Chlorinated poly(vinyl chloride)(PVC-C)piping systems for industrial applications—Part 2:Pipes GB/T 18998.2-2022介绍:...