DIN 1239:1999-02 Coverings for wells, spring water chambers and other water supply construction - Principles for construction
标准编号:DIN 1239:1999-02
英文标题:Coverings for wells, spring water chambers and other water supply construction - Principles for construction
德文标题:Schachtabdeckungen für Brunnenschächte, Quellfassungen und andere Bauwerke der Wasserversorgung - Baugrundsätze
发布日期:1999-02
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