模锻水压机要用模具，而自由锻水压机不用模具。
The drop forging hydraulic pressure confidential USES the mold, but the free forging hydraulic press does not use the mold.
锻造水压机又分为模锻水压机和自由锻水压机两种。
The forging pump press divides into the drop forging hydraulic press and the free forging hydraulic press two kinds.
钢坯先在一台水压机上预成形制坯，再在另一台压机上模锻，经轧制扩径后冲孔压弯。
The billet was at first pre formed and close-die forged on different hydraulic presses and then the forging was rolled, punched and bended. Such a production line will be the most efficient.
钢坯先在一台水压机上预成形制坯，再在另一台压机上模锻，经轧制扩径后冲孔压弯。
The billet was at first pre formed and close-die forged on different hydraulic presses and then the forging was rolled, punched and bended. Such a production line will be the most efficient.
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