The main resource in Ad Astra is **steel**. It is something that is quite easy to make once you have the **iron** and **coal** for it.

However, to create steel, you need to first make a **etrionic blast furnace**.

Below is how you create the block!

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To get iron plates, which are needed to make the blast furnace, you need to make a **compressor**, which can be found below.

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