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Acid-free envelope A4

0.68EUR + VAT ( 0.68EUR )
Qty:db

An envelope made from top quality acid-free paperboard which meets the requirements of ISO 16245.

324x229 mm

Model: KOPERTAC4CG
Expected delivery: June 23, 2025
Shipping fee: 3.02EUR

Description

  • Carta Guardia paper:
    - ISO 16245 type A and PAT certificates
    - 100% cellulose
    - colour: dark grey
    - pH > 7.5
    - alkaline reserve > 0.4 mol/kg
    - Kappa number < 5
    - water absorbency:  Cobb60 < 25 g/m2
    - no dye migration
    - no optical brighteners
    - grammage: 160 g/m2

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