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://efile.farafile.ir/file/49316/گزارش-کار-آزمایش-گرمای-نهان-ذوب-یخ-آزمایشگاه-فیزیک3