Yongping Province is rich in mineral resources, not only has a large number of high-quality coal mines, but also contains rich iron ore resources, limestone, dolomite, quartz sandstone, refractory clay, graphite and other non-metallic minerals are also remarkable.

Huang Han knew about the early development of cement and understood that quicklime and clay were fired in a three-to-one mixture of cement with the best performance, and these resources were easy to find locally.

He arranged for people to use a vertical kiln similar to lime in the Ming Dynasty to fire cement, the procedure is not complicated, the limestone and clay mixture is calcined into mature material, and then the cement is obtained after grinding.

Although the quality is not comparable to the cement of later generations, it can also meet the needs of Xu Guangqi to build reservoirs and ditches.

To smash the limestone and grind it into powder, the first process requires a lot of strong labor, and it also requires people to dig clay to stir and mix, and finally the baked lumpy clinker has to be smashed and ground again to get cement.

How much labor is required for such heavy physical labor? More than 20,000 displaced people were soon offered jobs in the workshop-style cement plant.

The common people of this era are actually the loveliest people, basically there are no lazy people, as long as they can get paid with a full stomach, almost everyone sweats and works hard, they are all striving for more effective working hours to be able to get a few pennies a day.

This is the Han nation, the hard-working Han nation, the hard-working and intelligent Han nation, and the obedient Han nation.

Nowadays, the first batch of cement has been put into use, and the use of cement is not difficult for plasterers to master, in the ditch and the silo granary built at the Funing wharf, the plasterer has replaced lime with cement.

There are many benefits to the silos under construction that produce grain from the bottom, which will reduce the risk of grain mildew and can also reduce rodent infestation.

The cylindrical granary of later generations often stored 10,000 tons of grain, and at present Huang Han did not have the courage and did not have that kind of technology, and he arranged to build a silo to store more than 3,000 stones of grain at most, which was about 200 tons of storage capacity in later generations.

In the future, Huang Han will spare no effort to store grain, grain storage is the top priority, with a relatively advanced cylindrical granary, will greatly reduce the loss of grain storage.

Because there is no conveyor belt, the grain can only be carried by strong laborers shoulders and carried along the stairs around the cylindrical granary into the warehouse, and it is much easier to leave the warehouse, and the grain outlet at the lower end will flow down.

Slow entry and fast out of the warehouse is actually very scientific, because there is food that needs to be stored, which means that there should be no hunger for the time being, and there is no need to worry about taking the time to carry it on your shoulders.

It is necessary to urgently transfer grain out of the warehouse, and perhaps thousands of people will face starvation to death.

There are 2,000 strong laborers and healthy women who build granaries under the guidance of professional plasterers, and they are all given three meals and are paid between 20 and 40 yuan a day, and there is no doubt about their enthusiasm for work.

Due to the rapid progress of construction in summer, it is expected that when the winter wheat in the south of the Yangtze River is delivered to the Funing wharf, more than ten silos can be put into storage.

After finishing the replanting of crops, the farmers near Kaiping would be relatively idle for a while, and Huang Han would offer more than 10 yuan a day and ration three meals to mobilize the common people to go out to labor.

These people will participate in the construction of reservoirs, cylindrical granaries, factories, roads, Huang Han currently has money in his hands, and the funds will be used to increase investment in infrastructure construction, which will not only increase employment opportunities for farmers, but also reflect benefits, although they will not get huge profits, but they can continue to develop and get a win-win situation.

In this era, ironmaking was made with large bellows to blow the natural wind, and ironmakers did not know that heating the air greatly increased the furnace temperature.

Huang Han opened the golden finger to design an uncomplicated tubular hot blast furnace, so that the air temperature for the steelmaking furnace reached about 400 degrees.

This innovative technological revolution directly led to an increase in the temperature of the Ming Dynasty's earthen blast furnace by about 300 degrees, and the iron-making craftsmen obtained the full liquid molten steel in the true sense.

The Ming Dynasty was the first in the world to use coke to make iron, and the quality of coke has stabilized by the end of the Ming Dynasty.

Huang Han invested in small blast furnace steelmaking in Kaiping, a unique place, due to the relatively low-end wind temperature technology, not only the quality of steel can be stronger than that of Suzhou Iron and Steel and Fujian Iron, which have the best reputation in the Ming Dynasty, but also reduce the cost by more than half.

With high-quality steel, Yang Lao is full of energy, and he no longer wields a hammer to make armor and bird guns, but instructs hundreds of blacksmiths and apprentices to work every day in the role equivalent of a quality director.

Huang Han took time out of his busy schedule to spend three mornings formulating the quality standards of the bird guns and unifying the acceptance specifications of the parts.

Yang Laoshi's finished product warehouse has a schematic diagram of the bird gun and gun parts marked with weight and size accurate to microns, and there is a whole gun and two bird guns that are decomposed into parts as samples and acceptance references.

Xu Guangqi was also a mathematician, he not only revised the weights and measures standards for the blacksmiths, but also enthusiastically provided the craftsmen with the more advanced measuring tools of the Military Instrument Bureau, similar to vernier calipers, which had long been available in this era.

Therefore, in the future, the parts and components of stereotyped products such as bird guns and guns produced by Huang can be universal, which will greatly improve the speed of maintenance.

The subdivision of the type of work is to improve the yield of the modern management mode to reduce the working hours, this also has the advantage, it is relatively easy to train workers, craftsmen are all day long to make and grind a few familiar parts, practice makes perfect that is inevitable.

In the whole process of making the bird gun and lifting the gun, Huang Han endured and did not open the gold finger again, so the bird gun produced by Huang was still an arquebus.

Huang Han knew that the development of flintlock pistols and flintlock rifled guns, and the use of mini bullets was the ultimate product of the front-loading black powder musket, but he was not in a hurry to prepare for the gradual progress.

Because the strength of the "Red Banner Army" is still very weak, Kaiping is relatively close to the Beijing Division, and it is too easy to be suspicious if it makes too many moves.

Moreover, Kaiping Town belongs to the imperial court, and there are court officials and officials who are constantly coming and going here, who can guarantee that there are no spies from Houjin among these people?

The civil and military generals of the Ming Dynasty did not know what was called a military secret, and even the arrangement of troops could be known to everyone, and even the casting method of the Hongyi cannon was written and widely disseminated.

The flintlock rifled gun, a cross-era product, cannot be missed at all, and cannot be pitted by pig teammates.

Huang Han was going to quietly produce flintlock rifled guns there when he had his own castle by the sea, which was less than a hundred miles from Shanhaiguan and more than six hundred miles from Beijing, and it was a military district, so it would be much easier to keep it secret.