偏位鍛粗鍛件 upset forging: 頂鍛; 墩粗; 鐓鍛center upset forging: 中部鍛粗鍛件double-end upset forging: 雙端鍛粗eccentric upset forging: 偏心鍛粗electric upset forging: 電熱鐓下載手機詞典可隨時隨地查詞查翻譯