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://prozheone.farafile.ir/file/44246/پاورپوینت-اصلاح-تنش-های-غیر-زیستی-(stress-tolerance)