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://man-ta-ma.farafile.ir/file/25536/شناسايي-ساختارهاي-زمين-شناسي-در-مخازن-نفت-به-روش-ژئوفيزيكي