短語(yǔ)詞組短語(yǔ)upset hutt welding 電阻對(duì)焊接頭upset -welding 電阻對(duì)焊Upset Bull Welding 鐓焊upset butt welding 電阻對(duì)接焊;端壓對(duì)頭焊接;電阻對(duì)焊接dc upset butt welding 直流電阻對(duì)焊resistance upset welding 電阻對(duì)焊high frequency upset welding 高頻電阻焊UW upset welding 電阻對(duì)接焊upset welding standards 焊接規(guī)范 返回 upset welding