Which country did the scissors invent? Upstairs said a lot of things that have nothing to do with the problem,1.The Egyptian first used the cross-shaped bronze scissors,2.About the first 5 th century,U-shaped scissors began to appear in Europe,3.The 6 th century scissors were introduced to Japan by China,In the era of jianghu, a large number of Egyptian people began to use cross-shaped bronze scissors,This has been verified by the historian 2.About the first 5 th century,U-shaped scissors began to appear in Europe,It was not until the middle ages that cross scissors appeared.The 6 th century scissors were introduced to Japan by China,In the era of jianghu, mass production began. According to archaeological data,The ancient Egyptian began to use bronze-cast scissors as early as 3 th century BC.On the wall of the Temple of Kom Ombo, there are scissors and some medical utensils,So,Scholars also generally believe that the Egyptian people took the lead in adopting surgical techniques,The inventor of the scissor

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What is the fault of code ero3 in speed sewing machine? First of all, let's check whether the needle is installed correctly,It's better to change a new machine needle.2, if still not,We went on to open the needle,Turn the needle to the lowest position,Look at the rotary shuttle tip from the machine needle 8mm or so.If yes,Then raise the machine needle 2.3mm or so,Look at whether the rotary shuttle tip coincides with the machine needle center.At this time, the needle and the tip of the shuttle can not be too tight,There should be 0.1 gap.3, sometimes the needle has a little bend will also jump the needle, the easiest way is to change the needle to try, if not, when the needle is installed, try a little bit, only a little bit, otherwise, it will break the line. sometimes such a simple operation is also very effective.4. it also has something to do with the thickness of your sewing.Thick things should be thicker,If the needle is fine, it will jump,If something thin,If the needle is thick, it will als