Sling sewing machine

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  • In addition to its versatility and durability, the sling sewing machine also offers a number of convenient features. Many models come equipped with automatic thread cutters, needle threaders, and built-in stitch patterns. These features make it easier to produce high-quality garments with minimal effort. The convenience of these features makes the sling sewing machine a popular choice among both beginners and experienced sewers.
  • Another advantage of automatic hand sewing machines is their versatility. These machines are capable of creating a wide range of stitches and patterns, from simple straight stitches to more complex embroidery designs. This allows users to experiment with different techniques and styles, creating unique and personalized projects.
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  • The reaction liquid is filtered through plate and frame pressure to obtain lithopone in the form of a filter cake with a moisture content of no more than 45%. It is then roasted in a drying furnace to change the crystal form of lithopone, and is then pickled with sulfuric acid at a temperature of 80°C. Finally, it is washed with water, reinforced with colorants, filtered, dried and ground into powder.