Founded in 1997, Dört-A Medical Materials Industry Import. Ihr. Tic. Ltd. Şti. started its commercial life with the production of 4A Medical branded sterilization rolls. In order to meet the needs of the health industry, it has enriched its product range with quality products such as Sterilization Envelopes, Tyvek® Rolls, Sterilization Control Products and Drain Group Products. Its products are approved by Turkish and international medical authorities.