3 sentences

1. 这种金属零件是用砂型铸造出来的。

   zhè zhǒng jīn​shǔ líng​jiàn shì yòng shā​xíng zhù​zào chu​lai de.

   This metal part is cast using a sand mold.

   Source: Dong Chinese Dictionary

2. 这些零件是根据木制的模型铸造出来的。

   zhè​xiē líng​jiàn shì gēn​jù mù​zhì de mó​xíng zhù​zào chu​lai de.

   These parts were cast from wooden patterns.

   Source: Dong Chinese Dictionary

3. 古代匠人常通过精密的技术来铸造精美的钱币。

   gǔ​dài jiàng​rén cháng tōng​guò jīng​mì de jì​shù lái zhù​zào jīng​měi de qián​bì.

   Ancient craftsmen often used precise techniques to cast exquisite coins.

   Source: Dong Chinese Dictionary