Unlike other weapons production plants, production plants for goods such as the Navy need to be located by the sea.

It is said to be a production plant, but it is actually better to be called a shipyard. Fortunately, Su Yu found a sea area in advance and was able to place the Iowa-class battleship production plant here.

After doing all this, Su Yu set his sights on the production plant upgrade cards. The next step was to upgrade the levels of these production plants.

At this moment, a system prompt sounded in Su Yu's mind.

"Ding~ It has been detected that the host has installed the primary production plant of the Iowa-class battleship. I would like to ask the host whether to purchase the parts production plant that comes with it."

"This parts production plant can produce various parts related to the Iowa-class battleships, machine gun bullets, fuel, etc., and the level of the production plant will increase along with the level of the Iowa-class battleship production plant."

"The price is only 80,000 RMB points. Will the host buy it?"

"Buy."

For this question, the answer is almost no need to think about it. It must be purchased. Such a parts production plant is undoubtedly the most cost-effective.

The only bad thing is that their prices are getting higher and higher. Now they cost 80,000 yuan, and they may cost 100,000 or even 200,000 yuan later.

Su Yu had a headache when he thought of this, but now was not the time to think about this.

"System, open the manufacturer upgrade card in the first-level mall."

"Ding~ The mall is opening, the opening is complete."

First level mall:

'An ordinary production plant upgrade card: you can upgrade the level of any production plant from elementary to intermediate, and the price is 3,000 RMB points.'

‘A high-quality production plant upgrade card: you can upgrade the level of any production plant from intermediate to advanced, priced at 10,000 RMB points.’

‘A perfect production plant upgrade card: you can upgrade the level of any production plant from high-level to top-level, priced at 50,000 RMB points.’

"System, purchase an ordinary production plant upgrade card and a high-quality production plant upgrade card."

"Ding~ The purchase was successful, it cost 13,000 people points, and the relevant production plant has been placed in the system space."

Good guy, 600,000 people points were squandered in one fell swoop, and the experience points also reached over 2.4 million.

It is one step closer to reaching five million experience points, reaching half of it. Presumably, when the mall is upgraded to another level, the products in it will definitely be very advanced.

............

"The system will upgrade the level of the Iowa-class battleship production plant from elementary to advanced."

"Ding~ The upgrade is successful. The level of the relevant production plant has been upgraded to advanced, which consumes two production plant upgrade cards."

In the blink of an eye, the production plant level of the Iowa-class battleships has reached a high-level level, and at the same time, the output has undergone tremendous changes.

From the original fifty days to manufacture an Iowa-class battleship and fifty rounds of artillery shells, it has now been increased to two days to manufacture an Iowa-class battleship and fifty rounds of artillery shells.

That's a full increase of twenty-five times. Especially in the past two days, an Iowa-class battleship is really outrageous. Good guy, look at it this way.

There are fifteen Iowa-class battleships in one month, and there will be almost 180 in one year. When other countries see the nearly two hundred Iowa-class battleships in the hands of the People's Army.

I was probably going to scold my mother in my heart, how could this happen? Two hundred Iowa-class battleships were swung towards the sea area. Others probably would not have the courage to resist after seeing this scene.

Now there is only one thing left to complete, and that is the artillery production plant for the Iowa-class battleships.

The firepower of the Iowa-class battleships is divided into main guns and secondary guns. The main gun is the mk7 406 mm 50 times caliber main gun.

The gun can fire mk8 armor-piercing projectiles, mk13 and 14 grenades, and mk19 personnel anti-personnel shells, etc. Among these shells.

The mk8 armor-piercing projectile weighs 1,225 kilograms, contains 18 kilograms of explosives, has a maximum range of 42 kilometers, and a rate of fire of 2 rounds per minute.

This kind of artillery also has its own lifespan, which is three hundred rounds. After firing three hundred rounds, it will almost have to be scrapped or repaired.

The secondary battery adopts 10 mk12 38 times caliber 127 mm dual-mount high-level dual-purpose guns, which can be equipped with grenades, armor-piercing projectiles, ordinary anti-aircraft shells, radio proximity fuze anti-aircraft shells, illumination bombs and personnel anti-personnel bombs, etc.
Chapter completed!