The transformation of workshops is a big project for ordinary people.


    But for the changsun family, there are many people, and the transformation has been completed in less than five days.


    Until early in the morning, Chang sun Chong yelled outside the Tang mansion.


    "Brother Tang! Get up with me quickly! We can forge steel vigorously!"


    The confused Tang Hao didn''t drag the boy into the carriage, so he ran all the way to the workshop.


    Tang Hao had said before that it was better for these smelting families to forge steel. I just suggested that everyone try assembly line work.


    Firing, forging, forging, grinding.


    Over time, there are outstanding figures in each of them, which can gather everyone''s strengths and take steelmaking to a higher level.


    Such suggestions on division of labor and cooperation are unique in this era, which opened the eyes of the eldest sun Wuji. On the same day, they divided the labor for these foundry workers.


    The first batch of knives to be produced today are horizontal knives, which are the most common sabres worn by soldiers in the Tang Dynasty.


    The blacksmiths assigned by each have their own tricks. From the making of knife embryo to quenching and bribery, there are strict processes. A total of 136 processes are indispensable.


    Tang Hao stood in the hot workshop with a single shirt and watched the craftsmen open gourds to mix mud.


    Bursts of Sao Qi filled the whole workshop. The eldest sun frowned and asked with his nose.


    "Tang Hao, what is this? Why does it smell so bad?"


    Tang Hao frowned, glanced at his eldest son and said calmly.


    "What else can it be? The urine of livestock. This kind of thing covers the sword body and can desulfurize."


    Once again, it involves chemical knowledge. Tang Hao knows that it is useless for this ancient illiterate, so he simply won''t go on.


    "Just look, why so many questions!"


    Between the words, the craftsman covered the sword with mud of different thickness.


    The blue flame puffed the burning snake, roasted the sword body, and hung it on the iron frame until it was completely red.


    The wind sounded, and the temperature of the sword hanging on the shelf gradually cooled, from the original red to dark red, and then to black.


    Burn, cast, fold, forge, bake again


    The whole process is complicated.


    Tang Hao and Chang sun Chong were the first to witness the whole process of the sword from several iron balls to swords.


    It was not until the whole body was soaked with sweat, like just taking a bath, that the last craftsman held the forged horizontal knife.


    "Lord Tang, according to your request, the first horizontal knife has been made."


    I don''t know whether I have already adapted to the bad smell, or after repeated beating, the Sao smell no longer exists. On the contrary, when Tang Hao took the horizontal knife, I can''t smell it.


    Slowly draw out the blade and look at the blade of the crime. Tang HaoDuan looks at it for a while.


    Although there is no decoration, such a simple sword already has the taste of cold weapon overlord.


    Flicking the blade with your finger, a "clank" dragon chant came out, and there was more than a slight shock.


    The cold light against the blade is like running water. It extends from the handle to the tip and disappears.


    Tang Hao''s dignified face calmed down, just like looking at the baby, and looked at the sword again.


    "Well, yes, it''s basically the same as what I think."


    The elder sun Chong beside him burst out a happy light in his eyes. Looking at the flowing Qinghui, he looked very excited.


    "Really have you!"


    "This is not an ordinary product at first sight. We succeeded!"


    The cold light flows and the faint dragon sounds. Tang Hao likes such knives.


    Although the cold light was reflected by the sunlight in the workshop, although the cold light was only due to shaking the sword.


    But where will such a spiritual sword go after it is cut?


    Waving it at will, Tang Hao slashed the swords made in the past.


    In the clear and pure clanging sound, the blade felt a tremor.


    In the sparks, the pain of the previous sword could be heard.


    Lift the horizontal knife in your hand and carefully check its essence and hardness. It is intact as before.


    The craftsman''s eyes showed a surprise. He wiped the sweat off his forehead and smiled.


    "This is a sharp sword made under the guidance of our Lord Tang. The steel goods are pure and full of toughness."


    "If this sword opens, it must be a good sword!"


    Tang Hao was also quite satisfied. He handed the sword to the craftsman and smiled.


    "Start making it like this, and strive to equip our soldiers with such a horizontal knife in the coming year."


    While excited, Tang Hao suddenly remembered Chumo''s entrustment and hurriedly called the craftsman who wanted to turn around.


    "Don''t worry. Take the lead in building an all-in-one red tassel gun. I want to surprise Chumo!"


    The first sword was produced again, and the rest were made very simple.


    The same inverted mold is calcined, hammered and folded.


    The operation rate of the whole pipeline is busy.


    Holding the newly baked horizontal knife, Chang sun Chong said he wanted to go to Kaifeng to have a look, so he left in a hurry.


    Seeing the scene of the boy fleeing, Tang Hao shook his head.


    "Since the blacksmith shop is all yours, why do you want to fight like your father?"


    "Did you learn it for his father?"