最終更新日：2022/12/24
A large number of very small tack welds should be used on thin metal sections, while a few larger tack welds may be used for thicker metal parts.
編集履歴（0）
A large number of very small tack welds should be used on thin metal sections, while a few larger tack welds may be used for thicker metal parts.
DiQt（ディクト）
無料
★★★★★★★★★★
