自行研制的低熔点合金型芯，经压铸实验，铸件孔成形完好。

The paper developed low-melting-Point alloy cores, through die casting experiment, the cores hole deformed well.

youdao

自行研制的低熔点合金型芯，经压铸实验，铸件孔成形完好。

The paper developed low-melting-Point alloy cores, through die casting experiment, the cores hole deformed well.

youdao