ONAY MUHENDISLIK VE DANISMANLIK is rated 3 out of 5 in the category executive office. Read and write reviews about ONAY MUHENDISLIK VE DANISMANLIK. - The "only representative" for Turkish Environmental Regulation; Chemical Invantory Regulation - approved MSDS represantative - quality system management consultancy - lead auditor for ISO 9001 - ISO 13485 - SPA / MW - to prevent technical files for de EC regulations especially MDD ( medical device directive ) - SPA - Medical Wellness Systems consultancy