The wall on the side of the cliff is 100 meters away from the cliff.

Although the distance in the middle is only a hundred meters, there are also some trees. However, due to natural disasters, most of the trees above are dead. Only a row of relatively strong trees remain.

The afternoon sun brings warmth.

The breeze blew slowly, blowing off the pine needles on the pine trees and falling.

These strong pine trees have withstood the severe cold and heat and have penetrated their roots deep into the ground.

At noon, the temperature reaches more than ten degrees, making people feel that winter is over.

The temperature of the sun shines on people's bodies, and the breeze is not dry, making people feel very comfortable.

Song Qi and Shang Xueer on the wall saw Li Yu and the others getting out of the car, waved their hands, and shouted to Li Yu and the others: "Mr. Li, what are you going to do?"

Li Yu covered the sun with his hands, raised his head and saw the two people on the wall, and said: "Repair the sewer, you guys are watching from above. If you find zombies, let us know."

"Okay, then you should pay attention to safety!" Shang Xueer shouted.

Li Yu waved and said he understood.

Then Lao Xie and others walked towards the cliff carrying ropes on their backs.

Because there are trees in front of them, the pickup truck cannot reach the cliff directly, and they have to walk a short distance further.

Several people carried guns and spears on their backs, passed through the row of pine trees, and soon reached the edge of the cliff.

Lao Xie stood carefully on the edge of the cliff, assessed the position, and then lowered the rope.

Wang Cheng pulled the rope and tied it to a huge rock six or seven meters away from the cliff.

The rope hangs down.

Li Yu took out his walkie-talkie and said to the two people in the sewer: "Lao Lu, the rope is lowered, did you see it?"

Lao Lu stuck to the iron railing and saw the rope hanging down three meters away. He used the intercom to report back: "Pull it another three meters to the right. The current position is wrong and we can't reach it!"

When Li Yu heard this, he said to Lao Xie: "Pull three meters to the right, but you didn't aim at the position below."

"Okay." Lao Xie pulled the rope over.

"Yes, yes, stop." Lao Lu below saw the rope floating past the iron railing and quickly stretched out his hand to pull the rope.

Li Yu quickly asked Lao Xie to stop.

Lao Lu took the rope and tied it tightly to the iron railing.

Then he stepped back and said to Xu Zhen: "Okay, Lao Xu, just cut off this iron railing and they can pull it up."

Xu Zhen took the cutting machine, stepped forward, and started cutting.

Toot toot—

The cutting sound is sharp and resounding.

Lao Xie heard the sound of cutting from above and immediately let go of the rope to prevent the iron railings from being cut down later and the gravity falling bringing him down with him.

Xu Zhen cut for ten minutes and finally cut off the welded steel plates on both sides of the iron railing.

But he held on to the iron railing and it did not fall down.

He turned to Lao Lu and said, "Lao Lu, remind them that we have cut the iron railings and let them be ready to respond on top!"

Lao Lu immediately took out his walkie-talkie.

After receiving their news, Lao Xie and Wang Cheng stood beside the boulder.

"Okay. Push it down." Li Yu contacted the two people below through the intercom.

Immediately, Xu Zhen pushed the iron railing outward hard.

Bang!

The iron railing fell down the cliff, but soon the rope was tied and the rope pulled the iron railing.

It hit the cliff.

Lao Xie and the others on the cliff saw the rope tightening rapidly, and then slowly walked over.

Four or five people hold the rope and pull it up hard.

This iron railing is quite heavy, but fortunately it is not high, otherwise it would be troublesome to pull it up.

A few minutes later, Li Yu looked at the row of pine trees behind him and said, "Let's cut off all those pine trees later and drive the car over, otherwise it will be too laborious. Xiaohang and the others will do it later."

The newly made iron railings are probably heavier and we can't pull them alone."

Lao Xie wiped his sweat, nodded vigorously and said, "Sure, there's a chainsaw in the car, I'm going to do it now."

Lao Xie called two people and walked towards the pickup truck.

Only a few dozen meters away, Li Yu and the others were sitting on the boulder, smoking cigarettes, watching Lao Xie and the others drive the car under the pine trees and saw the few pine trees in the middle.

As the pine trees in the middle were cut, the view became much wider.

Lao Xie and the other two drove the car over.

When they drove over, everyone worked together to carry the iron railing onto the car.

Immediately, several people used the same method to lift up the iron railings of several other drainage outlets.

Lao Lu and Xu Zhen in the sewer asked people in the city to move down the cleaning equipment, and then began to clean up the silt and garbage in the sewer.

Xu Zhen climbed up from the sewer and gave Li Hang the photos and videos she had just taken. She also gave Li Hang the measured dimensions of the iron railings and asked Li Hang to make them based on these dimensions.

When Xu Zhen and others climbed up from the sewer, Li Yu and others also drove a pickup truck back from outside the wall to the inner city.

After Li Hang got Xu Zhen's size requirements and video photos, he rushed to the small factory in the Second Outer City without stopping.

At this time, Li Yu got off the car and saw that Xu Zhen was the only one here, and asked: "Where are Ding Jiu and Lao Lu? Are they still down there?"

Xu Zhen nodded and said: "Yes, they are still down there, using cleaning equipment to clean up the sand and sludge below."

"Yeah, okay." Li Yu nodded slightly.

Then he turned his head and said to Lao Xie behind him: "Don't waste the trees we just sawed off. Go out and pull those trees back."

Those pine trees are relatively strong, and it is very rare for them to survive such a cold and hot environment.

Lao Xie nodded, took two people into the car, and drove out of the base.

In the sewer, Ding Jiu and Lao Lu were cleaning up the sediment and garbage in the sewer.

This was the first time they had cleaned up the sand here since the outbreak of the apocalypse. Ding Jiu took a shovel to shovel up the sand underneath. Sweat dripped on his arms, and he took off his mask.

This chapter is not over yet, please click on the next page to continue reading! The smell down here is too strong, but it is too stuffy to wear a mask all the time, so I have to take it off to breathe a sigh of relief.

The second outer city.

Li Hang, Zhou Ran, Lao Qin and others were sitting in a group, discussing issues such as iron fences and control lines.

"If you want to place the control lines in the sewer, they will definitely be flooded, and the wires must be wrapped with materials. I remember some PVC-C casings that Zhu Xiao got from the city next door. This material is

I don’t know where I put it.”

He Bing listened carefully to Li Hang's request, looked at the pictures on the iPad and said.

Under normal circumstances, some materials and equipment brought by whether they are collaborators or non-staff personnel will be moved to the inner city.

As time went by, more and more things were accumulated. Some of the things that Li Yu considered more precious were stored in cold-proof and heat-insulated underground warehouses.

For more things, a relatively large factory was built in the inner city, and then all the things collected from outside were put into it.

In fact, cooperators sometimes exchange items that are not on the list, and sometimes Li Yu and others will exchange them for food for materials that they think may be useful.

Since the cooperation model was launched, this factory that stores various materials has been expanded many times.

When my second uncle built the food processing factory, he found an area in the factory where supplies were stored for them to use.

Zhou Ran also nodded and said:

"Well, He Bing is right. If you want to bury this line in the sewer, PVC-C casing is acceptable. And this material has many advantages.

1. Good heat resistance: PVC-C hot and cold water pipes have good heat resistance and can be used in high temperature environments. They were often used in chemical plants, refineries and other fields.

2. Strong corrosion resistance: It has excellent corrosion resistance and can be used in acid, alkali, salt and other chemical environments.

3. High strength: It has high strength and can withstand large pressure and tensile force. It is suitable for occasions that bear pressure.

In addition, the material is very light, so it is easy and quick to transport.”

After Li Hang heard this, he immediately stood up and said to everyone: "I'm going to find a way to make a controllable iron railing. My brother said it should be stronger. At least stronger than before!"

After saying that, he ran towards the inner city. On the way, he happened to meet his second uncle and Li Zhengping, so he briefly talked and took them to look for PVC-C casings.

When the second uncle heard about this matter, Li Yu took it very seriously and became serious.

He immediately said: "Okay, I'll go with you, Zhengping. We'll talk to the factory later. Stop production for the time being. Let's go and look for this material together."

His nephew had an extraordinary status in his mind.

Since the outbreak, Li Yu has started planning farmhouses and bringing them back.

Later, he took his wife and children with him, trudged back thousands of miles, and was on the verge of death in Jiefang City.
To be continued...