Why 1 standard machinery costs 10 basic machinery? i'll very very big counts of iron
What about next tiers - i'm playing with toggled off cheaper steel from bob's mods so i'll need more iron for steel, finally leaves that I need a lot of iron, may be cost may be decreased in 2?

There are two recipes for each tier starting with standard machinery. The expensive one is intended as a "bootstrap" towards unlocking the cheap recipe. Once you research steel processing, you'll be able to make standard machinery much cheaper, but you'll need to start mass producing nickel.

Please note I haven't fully tested all the advanced tiers, especially late game tiers. So let me know if you think any of the later game recipes need to be re balanced.