DVGW W 421 - 2009-05 - DIN Media

Dear customers,

Currently, the printing and shipping of print documents (standards and publications) are delayed.
If available, you may also order the document in digital download format; it is usually available within a few minutes (or within one business day at the latest if manual review is required).
To convert an existing order, please email international@dinmedia.de, including your order number or customer number.
We apologize for the inconvenience and thank you for your patience.

Your DIN Media