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://123deta.com/document/q2n40l6q-高速増殖もんじゅ震指針性評価安全上重要機器配管耐震安全性評.html