When he smelted iron and made glass, he obtained some solids, which he tried grinding into powder, then mixing with water to see if they were sticky enough to form cement.
He was particularly interested in stones with softer textures, hoping that their powder, once mixed with water, would become sticky and harden to resemble a cement floor. That would mean he had his own kind of cement.
The interest Iron Furnace Village had in stones had spread quite far.
'Fourth Uncle' started collecting all kinds of stones.
They had gathered many stones containing iron, but unfortunately, the content was very low. Upon careful inquiry, it seemed they were not from any iron mine, and it wasn't worth Ma Lin's time to explore them.
In fact, Ma Lin most wanted to discover stones containing copper, tin, gold, and silver.
In this area, his luck was very poor.
