Etrionic Blast Furnace
Этрионическая доменная печьad_astra:etrionic_blast_furnaceThe Etrionic Blast Furnace is an upgraded version of the blast furnace. It has two modes: blasting and alloying. Blasting works like a blast furnace, but with 4 slots for 4x efficiency. Alloying combines materials to make an alloy.
Steel
Стальной слитокad_astra:steel_ingotSteel is made in an etrionic blast furnace by combining iron and coal. This will make 1 steel ingot per iron and coal. Steel is essential for most recipes and is the main material of your first rocket.