Sanitary tapware. Single taps and combination taps for water supply systems of type 1 and type 2. General technical specification
中国标准分类号: P(工程建设) ; P40(给水、排水工程综合) | 发布日期:2008-07-01 实施日期:2008-07-01
Steps for underground man entry chambers - Application in construction works for wastewater disposal
中国标准分类号: P(工程建设) ; P41(室外给水、排水工程)
General requirements for components specifically designed for use in trenchless construction of drains and sewers
中国标准分类号: P(工程建设) ; P41(室外给水、排水工程)
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