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/y6j9p27q-耐震性能評価耐震診断の方法近似応答計算により建築物の各階各方向の応答層間変形角を求める限界耐力計算と.html