2 sentences

1. 这家工厂专门生产重型卡车。

   zhè jiā gōng​chǎng zhuān​mén shēng​chǎn zhòng​xíng kǎ​chē.

   This factory specializes in manufacturing heavy-duty trucks.

   Source: Dong Chinese Dictionary

2. 士兵们在阵地上架起了重型机枪。

   shì​bīng men zài zhèn​dì shàng jià​qǐ le zhòng​xíng jī​qiāng.

   The soldiers set up heavy machine guns at the position.

   Source: Dong Chinese Dictionary