短语词组短語swaged welding tip 鍛造銲嘴spot welding tip 點銲電極工作耑Anti -blocking agent for welding tip 銲嘴防堵劑tip welding 板嘴銲接;切口堆銲Contact tip welding electrode 發明名稱lance tip welding device 槍頭銲接裝置 返回 welding tip