About IMURA ATSUSHI
About 職業能力開発総合大
About TOMONAGA NAOYA
About 栃木職業訓練支援セ
About HAYASHIDA MASAHIRO
About 岩手職業訓練支援セ
About FUJII NOBUYUKI
About 職業能力開発総合大
About arc welding machine
About MIG welding
About inverter
About control
About digital control
About evaluation test
About acceptance(test)
About period(duration)
About analog control
About years of experience
About Welding equipment
About アルミニウム
About 溶接
About 技能者
About 評価試験
About JIS
About 合格
About 動向
About 溶接機