Liu Dahai stretched out his head and saw that Huoyan was illiterate. The goods written in the front of the manifest are sold in large quantities to the Japanese country, so Huoyan Cheng recognizes them, but what is written in the back are soap, shampoo and other goods, and Huoyan does not recognize them. So Liu Dahai was overjoyed in his heart and said: "Those things are our own goods, and we are going to get them to test the water." I don't know if I can sell it. If you don't become the boss, I'll quote you a price? ”

Liu Dahai said: "If you want copper and sulfur, you don't want other materials." That's the only one we have to go. We don't know where to sell it when we take it back, so we'll talk about it next time. ”

After Huo Yancheng finished speaking, he called a person, tore open the manifest and handed it to him, and asked him to arrange someone to unload the goods. Then he beckoned to Liu Dahai and said, "Go, come with me." I'll take you to stock up. ”

As soon as the words fell, a male voice in the store said, "Oops! Ah! Mr. Cheng, you're kidding me again! ”

As soon as the widow went out, he bowed to everyone again and again, and said, "Welcome, Mr. Cheng!" And all guests, welcome! Please come and sit inside! ”

Then he turned back to Liu Dahai and said, "He is the owner of this shop." It's called Kikukimaru. I first met him in the evening tavern. At that time, I threw out an old piece of silver to buy wine, and the light was yellow, so he thought I was throwing out gold. He praised me for being a rich man. When he figured it out, we became friends. I nicknamed him the Blind Man. He's known me for many years and is a very good businessman. You want to sell him

Liu Dahai arched his hand and said: "The little surname is Liu, and his name is Liu Dahai." Later, I still hope to have more contact with Brother Cheng. ”

After speaking, he turned back to Kikumaru and said, "This kid just sold me a batch of 28,000 taels." They also need to get some copper and sulfur back, so you can arrange it for them. Don't forget to come to me at the end to get the money. ”

Huo Yancheng waved his hand and said, "Okay, I'll go." ”

Liu Dahai took off his shoes, stepped on the wooden floor, and followed Kikumaru towards the storefront. A few of the family members stayed outside. The inside of the store is very tidy. The floor is light. It doesn't look like a shop, it's more like a tea house. And there really is a tea set in the center of the floor.

Liu Dahai said: "Yes, but how do you know? ”

Liu Dahai said self-deprecatingly: "So that's the case! It seems that newcomers are not easy to mix everywhere! ”

Both laughed. In the end, the two had to talk all over the world before slowly moving on to business. Kikumaru said, "Mr. Cheng said that Mr. Liu needs copper and sulfur, right? ”

Kikumaru nodded and said, "Please wait a moment. ”

Made in vain, he quickly finished inspecting the goods, and Liu Dahai felt very satisfied. Liu Dahai knew that Liu Pei needed a lot of copper. However, Liu Pei did not tell Liu Dahai about wanting to mint private money, but only told him half of the purpose, that is, the hull of the sea ship needs to be covered with copper plates.

Barnacles are a bit of a late-track deal, and there's one creature that's the most terrifying! Even when sailing in the belt, there is a terrible creature called "ship maggots" in the warm water. The maggot looks like a sea intestine, thin and long, but it is actually a bivalve mollusk like a clam and a river mussel, its shell is very small, just wrapping the "head", it uses this shell as a shield, just like the cutterhead on the nose of today's submarine shield, digging into the hull wood of the bottom of the sailboat, and the hull plate at the bottom of the ship will become a honeycomb in less than a year. Then the boat leaked in a slightly stronger wind and waves!

However, white material also has two disadvantages, first of all, the raw material is too expensive, resulting in the high price of white material. Secondly, the surface of the white material is not smooth, and these rough protrusions of a few millimeters or even a few centimeters have a great impact on the speed of the ship.

In the 70s of the 18th century, the British discovered that copper skin has a good underwater resistance to epiphytes and erosion. First experimented on cruisers, and finally, during the American Revolution, Britain decided to spend a lot of money to gradually wrap the entire fleet in copper.

During the American Revolutionary War, although the American armed merchant ship Richard defeated the British 44-gun battleship, the Americans also noticed that although the British copper-coated battleship was a battleship with heavy artillery towing speed, it was also at least a quarter faster than the American modified East India merchant ship.

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