DIN EN 13598-2 (2006-12)被替代
Plastics Piping Systems For Non-pressure Underground Drainage And Sewerage - Unplasticized Poly (vinyl Chloride) (pvc-u), Polypropylene (pp) And Polyethylene (pe) - Part 2: Specifications For Manholes And Inspection Chambers In Traffic Areas And Deep Underground Installations
出版：German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻
