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Chen Xu re-sketched the pattern of the umbrella with charcoal. (The fastest update speed is on the Aishang Novel Network biquge.info)

The most common and popular in Yanguo is the oil-paper umbrella. The umbrella bones cut by handmade bamboo strips, the lint paper umbrella surface painted with natural waterproof tung oil, and the beautiful painting workmanship always make people think of that dreamy scene: in the drizzle, the slender Jiangnan girl holds an elegant flower paper umbrella and flows through the stream, and the beauty is simply natural.

The oil paper umbrella is used in both weather and rain, and it is also an indispensable item in wedding customs and etiquette. In Yan Kingdom, when the bride gets married and gets off the sedan chair, the bride will cover the bride with a red oil-paper umbrella, and the "oil-paper" is homophonic to "have a child", and there are five "people" in the word "umbrella", in order to have more children and more blessings after marriage. The vigorous development of umbrella culture has led to the prosperity of umbrella-making workshops, and in the Yan country, the north and south of the river, oil umbrella workshops are blooming everywhere and are commonplace.

Umbrella making, especially the exquisite workmanship, high quality oil paper umbrella, the process is complicated, from the selection of materials, sawing bamboo to framing umbrellas, painting and even the final tung oil, knotting, up to more than 80 processes.

The Ling family, the Yang family, and even the Qin family and the Feng family have not set foot in the umbrella industry, Chen Xu wants to get a piece of the pie in this industry, even if he has enough connections, if he can't be different, how can he win those century-old shops? Chen Xu drew a three-fold umbrella on paper.

As the name suggests, the three-fold umbrella can be folded three times, and modern people are no strangers to it, because its structure is tight and firm and easy to carry, basically everyone has a hand; If Chen Xu can make a folding umbrella, this is definitely a rare thing in Yan Kingdom.

Of course, Chen Xu is no stranger to folding umbrellas, but he is a little vague about the structure of the umbrella bones, and he thinks about its feasibility while painting. Of course, bamboo umbrella bones are not good, and metal materials can be used for nothing more than those kinds, gold and silver are optional, but they must not be mass-produced; Once the folding umbrella is popular, the merchants who are looking forward to the wind will inevitably follow suit - commonly known as piracy in modern times - a large number of copper coins are made into umbrellas, and the imperial court will 100% intervene; As for aluminum, it is said that this metal was first discovered by German chemists in the 19th century, and Chen Xu had never seen an aluminum pot for cooking in Yan Kingdom anyway; Thinking about it, only iron products are available, which is convenient and inexpensive, but the problem is that it is easy to rust, and the slender iron wire of the skeleton will break in a few days once it is corroded, and it is difficult to attract people to buy objects with too short life.

In modern society, the greatest discovery of the nineteenth century is said to be how steel was made. This material is a mixture of iron and carbon in a controlled quantity, which is easy to produce and extremely hard; As for stainless steel, it is made by smelting chromium and nickel.

Of course, this is easier said than done.

There is no genius in the world, and even if Chen Xu has an amazing memory, it is impossible for him to remember everything. Without the massive amount of data stored in his laptop, he would not have dared to think of this. It is said that the owner of this notebook is indeed a cow, I don't know what its purpose is, all the important information in the hard disk is in English, Chen Xu is glad that he is proficient in English, otherwise he will be so depressed that he vomits blood. Of course, Chen Xu is even more glad that he is proficient in the script of a certain island country, and although the narrative of the wonderful film and television pictures stored in the computer is not strong, it is more immersive to figure out the cause and effect in listening to the very lyrical "Flax Butterfly".

"Hey, what are you thinking?" Feng Che suddenly patted Chen Xu's shoulder, "Your expression is very lewd, even more obscene than me." ”

"Is there one? You must be reading it wrong. ”

Chen Xu argued, and Yang Yunrui nodded in agreement with Feng Che's meaning. Chen Xu was speechless, and with his cheekiness, he was embarrassed to admit the "sexual fantasy" just now.

"You drew an umbrella?"

Yang Yunrui asked as he looked at Chen Xu's handwriting on the white paper, while Feng Che casually read out a few small words after the figure.

"Iron, steel, stainless steel, I know this iron, but what about your 'steel' and 'stainless steel'?"

Chen Xu raised his head, he looked at Feng Che and said, "With your IQ, it's hard for me to explain it to you. ”

Feng Che nodded, and then became furious, he said angrily: "Single-handed, I want to duel with you." ”

"Fart, it hurts, I'm not interested."

Feng Che: "......"

Yang Yunrui asked seriously, Chen Xu thought for a while and said: "Steel is iron that is harder than iron, and stainless steel is iron that will not rust." ”

"Iron that doesn't rust?" Yang Yunrui had already sat back on the small bed, and when he heard the words, he jumped up, and his excited appearance was like a flower thief seeing the big girl with a light ass sent to the door.

"Boss, is this rustless iron really so attractive to you?" Feng Che asked in surprise.

"Of course!" Yang Yunrui clenched his fists, "Do you know how many weapons my Dayan has to be abandoned due to corrosion every year?" And how many saddles have been damaged by corrosion? Speaking of this, he stared at Chen Xu with bright eyes, just this look would definitely make Miss Ling drink old vinegar to her heart's content, and then he grabbed Chen Xu's shoulder excitedly and shook it, "Third brother, if you can really make that iron that won't rust, do you know how many silver taels my Dayan has to save for weapon consumption alone?" And the iron, which you just said is harder than iron, if it can really equip our army, how can its combat effectiveness be doubled? ”

Yang Yunrui swayed, and the paratrooper knife on Chen Xu's body slid to the ground. Yang Yunrui didn't know the origin of Chen Xu's paratrooper knife, he had always thought that this knife was the same as the saber issued by the wolf's teeth, but at this moment he saw the difference.

"Good knives!" Yang Yunrui sincerely admired, "Is this the stainless steel material you just said?" ”

Chen Xu admired Yang Yunrui's vision, the paratrooper knife in his hand was made of high-strength stainless steel, and the sharp serrations on the back of the knife could even easily cut the aluminum shell and cables of the aircraft.

Seeing Chen Xu nodding, Yang Yunrui suddenly pulled out his portable sword and handed it to Feng Che, he said, "Hold it tight!" ”

Yang Yunrui is the most respected general of the Yan Kingdom, and his sword is certainly not ordinary, even if it is not a sharp weapon that has been handed down since ancient times, it is also a collection of the most advanced sword casting technology of the Yan Kingdom. Feng Che held the sword in his hand, and he couldn't help but sigh: "Boss, your saber is definitely a divine weapon, borrow me to play with it for a few days." ”

Yang Yunrui was silent, he suddenly clenched the paratrooper knife and slashed at his saber, Feng Che almost subconsciously waved his sword to block, only to hear the sound of "clang", the "magic weapon" in Feng Che's mouth was broken into two, and he opened his mouth wide in horror and could almost stuff a boiled salted duck egg.

"Third child, lend me a few days to play."

Chen Xu smiled and waved his hand, "If you want to play, you can take it, why do we brothers divide each other?" After a pause, he added, "Pay me back when you're tired of playing." ”

Yang Yunrui: "......"

Feng Che's mouth continued to open wide, he suddenly found that he was a whole beat slower than Yang Yunrui, he regarded the boss's saber as a treasure, but he didn't know that the boss already had a higher pursuit, this is the gap.

"Boss, look at the knife!"

Feng Che took out the saber issued by the wolf's fangs, and he jumped up, taking advantage of the situation to slash like a thousand jun. Yang Yunrui waved his knife unhurriedly to block the block, and the moment the blades collided, he felt that his heart was in his throat, although he had already guessed the result. Ladies and gentlemen, are you satisfied with this chapter? If you are satisfied, please vote, can you break 500 votes today? I think it's quite feeling to write, thank you in advance for your support!!

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