Since it is T1 it can be built right off the block from the War Factory.

由于它是一级单位，你可以在造好重工后立刻制造它。

youdao

In order to salvage any Ore Collectors that have been infected by Terror Drones, you must send them to your War Factory (Allies), Mecha Bay (Empire), or Crusher Crane (Soviets - late game).

为了抢救被恐怖机器人感染的矿车，你必须把他们送回重工(盟军)，机甲工厂(帝国)，或是粉碎起重机(苏军-后期)。

youdao

In order to salvage any Ore Collectors that have been infected by Terror Drones, you must send them to your War Factory (Allies), Mecha Bay (Empire), or Crusher Crane (Soviets - late game).

为了抢救被恐怖机器人感染的矿车，你必须把他们送回重工(盟军)，机甲工厂(帝国)，或是粉碎起重机(苏军-后期)。

youdao