บท 1257: A National Machine

"I need an additional ammonia plant and a saltpeter plant. You knew that, didn't you?" Roland asked.

Agatha and Paper had been working on these two materials, but the production rate was not satisfactory due to the lack of catalysts. Although their method was much better than the original acid-making method that involved saltpeter, they could not further increase the production as a result of limited manpower and magic.

After Roland obtained a copy of the complete periodic table of elements, the chemistry laboratory immediately started to make sample elements. With Lucia's help, the Ministry of Chemical Industry was now able to create a sample for every element on the table, including many rare elements such as platinum and rhodium that were normally used as catalysts in chemical reactions.