C512 The Situation Has Changed Once More

Speaking of which, what Qin Feng needed was not very special. It was different from the large amount of iron and steel needed for war in this era. Qin Feng had the ability to produce more energy with fewer things.

The synthesis method of nitroglycerin was just a mixture of nitric acid, sulfuric acid, and glycerin. The production of nitric acid and sulfuric acid was not difficult for Qin Feng