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