最終更新日:2022/12/24

One hundred per cent penetration can be obtained by welding in a slight vertical weld uphand on metal up to eight gages.

編集履歴(0)

Sentence quizzes to help you learn to read

編集履歴(0)

ログイン / 新規登録

 

アプリをダウンロード!
DiQt

DiQt(ディクト)

無料

★★★★★★★★★★