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.
https://paishnahad.pdf-doc.ir/file/6213/دانلود-جزوه-شیمی-سال-دهم-فصل-اول-رشته-ی-تجربی-و-ریاضی