标准查询 标准查询交通区地下排水设施和地下工程用管路及配件.第1部分:聚氯乙烯-U,聚丙烯和聚乙烯管路,管件及其接头
Pipes and fittings for subsoil drainage of trafficked areas and underground engineering - Part 1: Pipes, fittings and their joints made from PVC-U, PP and PE
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标准查询Pipes and fittings for subsoil drainage of trafficked areas and underground engineering - Part 1: Pipes, fittings and their joints made from PVC-U, PP and PE
