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    What are the advantages and disadvantages of the rotary shuttle and the shuttle? Why some machines to design hook., such as a flat head keyhole machine, high-speed sewing machine and so on, and some m...

  • Major components of industrial sewing machine?

    Industrial sewing machine, sewing machine industrial, a sewing machine for sewing machine parts in a large number of sewing factories or other industrial departments. Clothing, shoes and hats, etc. ne...