منبع: https://www.wegreened.com/blog/niw/success-stories-a-cfd-engineer-from-egypt-achieves-niw-approval-in-the-field-of-mechanical-engineering-in-just-2-days-thanks-to-pp-upgrade/
دستهها
منبع: https://www.wegreened.com/blog/niw/success-stories-a-cfd-engineer-from-egypt-achieves-niw-approval-in-the-field-of-mechanical-engineering-in-just-2-days-thanks-to-pp-upgrade/