Flat envelopes
Flat envelopes
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Description
Our flat envelopes are made from permanent pH neutral paper with a 4.5% alkaline reserve. ISO 9706 certified and PAT compliant.
Sticking on the outside, neutral pH validated by the BnF.
In permanent paper 225g/m², brown colour.
Also available in permanent paper 350g/m².
Customised envelopes can be produced.
Delivery flat.
Sticking on the outside, neutral pH validated by the BnF.
In permanent paper 225g/m², brown colour.
Also available in permanent paper 350g/m².
Customised envelopes can be produced.
Delivery flat.