What kind of electric sewing machine can do sheets, quilts, curtains? The household sewing machine integrates the functions of straight-line sewing, bending sewing and eye locking,Generally use human drive (foot, hand drive ),Also useful motor drive.The household sewing machine integrates the functions of straight-line sewing, bending sewing and eye locking,Just one machine,Can easily sewing.Industrial sewing machine,Sewing machines suitable for sewing workpieces produced in large quantities in sewing factories or other industrial departments.Clothing, shoes and hats, etc. factories that need sewing machines use industrial sewing machines.If you process the sheets yourself,The quantity is one or two,Or the funds are tight,Just use the household sewing machine.If the money is rich, choose industry,For living more,It's good to use an electric household,Not tired,Still alive,Also convenient.If the company specializes in processing sheets,Or mass production,Then you need to use industrial sewing machines.Indu

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Is the right side of the vertical thread placed on the Bolt axis higher than the left side is the right rotation? The matching nut is cut with the cutting machine and the extension axis is cut to find that the thread is left high and right low? You have already mentioned this question. have you not read the answer?The rotation of the thread can be judged by the right hand. the palm of the hand is facing itself. the rotation of the thread is consistent with the direction of the thumb of the right hand. On the contrary, it is the left thread.The outer thread of the bolt is right-handed, and the inner thread of the matching nut is also right-handed.If you look at it in perspective, you will understand it.Put the thread on the palm of your hand and observe the angle of the thread, that is, which side you are talking about is high, the left side is high, and the left is left.High on the right and right.As for the situation you saw when you cut the nut, you are a little confused. when the right hand palm is up, t