End-to-end encryption and privacy controls.
Message and call for free* around the world.
Group conversations made simple.
Say it with stickers, voice, GIFs and more.
Reach your customers from anywhere.
http://digidic.farafile.ir/file/18947/دانلود-طرح-توجیهی-فنی-و-اقتصادی-بازیافت-و-فرآوری-فولاد-و-آهن