短語詞組短語electric upset forging press 電鐓機Upset forging ratio 頂鍛鐓粗比例External upset forging 向外鍛粗upset forging machine [機]鐓鍛鍛造機tr upset forging tr 鐓鍛upset forging technology 平鍛工藝upset forging die [機]平鍛模electric upset forging machine 電熱鐓機end upset forging 雙端鍛粗 返回 upset forging