ボルト打ち電極分離タイプ Separated tpe of electrode for bolt welding
用法Usage
電極内部に絶縁素材（KCF, Si3N4）を装着し電気分流によるネジ部の破損を防止します。Insulating material (KCF, Si3N4) is installed inside the electrode to prevent the thread part from being damaged clue to electrical shunting.
