Here is a great video explaining about CE marking of fabricated structural steelwork under the Construction Products Regulation (305/2011). The video is also supported by a information rich “encyclopedia”: https://www.steelconstruction.info/CE_marking. Although the information aims at the UK industry, most of it applies to any company that intends to make available fabricated structural steelwork in the European Union.
EU Proposal: New Harmonized Standards for the Marketing of Construction Products
The EU Proposal: New Harmonized Standards for placing Construction Products on the Market is published. This is a short summary of the content of the proposal. You can also find a link to the full draft.