This mixture is both waterproof and able to expand and contract as the board expands and contracts.

It is a magical material summarized by Chinese sailors from generation to generation.

Until now, this mixture is still widely used by coastal fishermen in boat building.

Chen Lang has ramie silk.

Wood tar to replace tung oil.

Only lime is not easy to handle.

These calcium carbonate-rich shells can only be burned.

Acts as lime.

As for the effect.

It will certainly not be as good as the lime produced on the industrial assembly line.

But it’s not that bad.

Collected a lot of shells.

Chen Lang put the shell directly in his backpack.

The two continued to inspect traps.

Without the trap of label blessing, the harvest is mediocre.

But there are many traps.

Gwen and Rayman set nearly twenty traps.

Transfer in one trip.

Chen Lang's bamboo basket is also more than half full.

......

Afternoon.

The rain has increased again.

Big water droplets pitter-pattered on the tarpaulin.

The three of them can only stay in the shelter.

Because I have nothing to do.

Feeling bored, Chen Lang began to teach Gwen.

What we are talking about is the tenon and tenon structure.

Gwen was stunned: "Mortise and tenon structure? Haven't I finished learning it?"

"Ah? When?"

Chen Lang was also stunned.

In my memory, he didn’t tell Gwen that much.

Gwen clapped her fingers and counted: "Isn't the mortise and tenon structure a structure that uses mortises and tenons to achieve a fixed effect?"

"Yes."

Chen Lang nodded.

Gwen's memory is still very good.

"In the mortise and tenon structure, wooden pins are one of the most important parts..."

"Wait."

Chen Lang interrupted Gwen: "I never said this."

"Well, this is my own conclusion."

Gwen smiled and said: "I think the wooden spike is the most important part."

Look, this girl is very proud.

Chen Lang sighed and said earnestly: "Gwen, it's a good thing to learn to summarize by yourself."

"But you can't summarize randomly."

"Ah?"

Gwen was stunned.

Chen Lang said: "Tack nails are just auxiliary tools. A real experienced carpenter can do without nails without using nails."

"Real mortise and tenon structure, common ones include shoulder tenon, Bawangji, chuck tenon, concealed tenon..."

Chen Lang said a long list.

Gwen trembled when she heard this.

"This... so much?"

Gwen felt terrible.

She made a sound of exclamation.

"What a great carpenter it is to be able to sum up so many laws..."

Chen Lang waved his hand: "This is not something that one or two carpenters can sum up."

"The mortise and tenon structure has been accumulated by China for thousands of years. As far as I know, hidden mortises, transparent mortises and half mortises have already appeared in the pre-Qin period."

"Until the Ming and Qing dynasties, new structures appeared."

"This is the wisdom of the people, and it cannot be summed up by one or two carpenters."

After Chen Lang reversed Gwen's dangerous thoughts.

Start teaching Gwen how to make dowels.

Dovetailing is a common method of joining wooden boards.

Generally used to make boxes, cases, tables and other items.

Chen Lang taught Gwen this method, just to make a few boxes.

Good for storing survival items.

Gwen is very interested in the magical mortise and tenon structure.

I am also very willing to learn.

But she overestimated Chen Lang's teaching ability.

Chen Lang just talks and occasionally draws pictures.

But how can you learn the tenon and tenon structure just by looking at pictures?

Therefore, Gwen learned very painfully.

Finally, Gwen couldn't bear it anymore.

She put down the wooden board in her hand: "Stop reading it, my head is about to explode."

"You'd better start demonstrating your teaching ability..."

"Just as bad as the teachers in the public school I went to!"

Lehman laughed while holding a wooden bowl and drinking tea all afternoon.

He hasn't been this happy for a long time.

Chen Lang also kept laughing.

This was the first time he saw Gwen angry.

The little fox lying at Chen Lang's feet also purred.

It seems that Chen Lang's happiness can be felt.

After Chen Lang finished laughing, he rubbed the little fox's head.

He said: "Okay, let me start the demonstration directly."
Chapter completed!