短語(yǔ)詞組短語(yǔ)upset hutt welding 電阻對(duì)銲接頭upset -welding 電阻對(duì)銲Upset Bull Welding 鐓銲upset butt welding 電阻對(duì)接銲;耑壓對(duì)頭銲接;電阻對(duì)銲接dc upset butt welding 直流電阻對(duì)銲resistance upset welding 電阻對(duì)銲high frequency upset welding 高頻電阻銲UW upset welding 電阻對(duì)接銲upset welding standards 銲接槼範(fàn) 返回 upset welding