what is a twin needle

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what is a twin needle

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  • Sewing with heavy canvas is a rewarding pursuit that can yield both functional and stylish creations. With the right tools and techniques, you can master this robust fabric and create projects that last for years to come. Embrace the challenge, experiment with different patterns and styles, and enjoy the process of sewing with heavy canvas. Happy sewing!


    what is a twin needle

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    what is a twin needle what is a twin needle

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  • Heavy-duty sewing machines are specifically designed to handle thicker fabrics and multiple layers, which are common in projects like upholstery, denim, and heavy quilting. Unlike standard sewing machines, heavy-duty models are equipped with powerful motors that provide increased speed and strength, allowing users to sew through tougher materials with ease. This capability is particularly beneficial for those who frequently work on substantial projects without experiencing fabric jams or thread breaks.


    what is a twin needle

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    what is a twin needle what is a twin needle

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    what is a twin needle

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    what is a twin needle what is a twin needle

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  • antiqueBefore you purchase a sewing machine, you have to consider what you will be using it for and how often you use it. Usually, heavy duty sewing machines are used in industries because of their dependability and durability. These machines are equipped to handle tough tasks. The type of machine is quite excellent as far as dealing with heavy fabrics such as animal skin, denim, and leather. You will find it great for making blinds, buttonholes, quilts, and upholstery. These are some factors to consider before buying.

    what is a twin needle

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    what is a twin needle what is a twin needle

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  • Overall, an automatic bag closer sewing machine is an essential tool for businesses that rely on efficient and reliable bag packaging solutions. With its speed, versatility, ease of use, and durability, this machine offers a cost-effective and efficient way to close bags securely and ensure the safe transport and storage of goods. Whether you are a farmer, manufacturer, or distributor, investing in an automatic bag closer sewing machine can help streamline your packaging process and improve your bottom line.

  • Seaming machines are often equipped with various attachments and accessories to help streamline the sewing process

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  • steel

  • annealed

  • The main difference between the two is the carbon content. The carbon content of iron is 2.11 percent or greater, while the carbon content of steel is 2.11 percent or less. The iron carbon alloy with carbon content above 2.11% is cast iron (pig iron), which is basically not malleable and cannot be drawn into wire. Secondly, the content of impurities is different. The content of harmful impurities such as sulfur and phosphorus in steel is smaller. Steel wire general color focus, iron wire color light point, white point.

  • Barbed


  • Post time: 14-06-24
  • Therefore, when the zinc reaches saturation in the solid melt, the two elements of zinc and iron atoms are diffused with each other, and the zinc atoms diffused into (or infiltrated into) the iron matrix migrate in the lattice of the matrix and gradually form an alloy with the iron, while the iron diffused into the molten zinc liquid forms an intermetallic compound FeZn13 with the zinc and sinks into the bottom of the hot galvanized pot, that is, zinc slag. When the workpiece is removed from the zinc leaching solution, the surface of the pure zinc layer is formed, which is hexagonal crystal, and its iron content is not more than 0.003%.

  • Barbed rope is an isolation protective net made of iron wire, which is wound on the main line (twisted wire) through the winding machine and through various weaving processes. Thorn rope generally has three methods of twisting, the following Haorong for you to introduce in detail.

  • barbed

  • This oxide film has greater elasticity and lubricity, does not affect the accuracy of parts. Therefore, the parts of precision instruments and optical instruments, spring steel, thin steel sheet, fine steel wire and so on are commonly bluing treatment. The commonly used galvanizing treatment of large roll galvanized wire is equivalent to forming a protective layer on the surface of the iron wire. The commonly used methods are hot dip galvanizing, hot spray plating, vacuum plating and so on. Different methods have corresponding characteristics.

  • The coating on the surface of the welding core is called the coating. The coating of electrode plays a very important role in the welding process. If the photoelectrode without drug skin is used for welding, in the welding process, oxygen and nitrogen in the air will invade a large number of molten metal, metal iron and beneficial elements such as carbon, silicon, manganese oxidation and nitriding to form various oxides and nitrides, and residual in the weld, resulting in slag inclusion or cracks in the weld. The gas in the weld pool may produce a large number of pores in the weld. These factors can greatly reduce the mechanical properties of the weld and make it brittle.

  • Stainless steel is short for rust acid steel, air, steam, water and other weak corrosion medium or stainless steel is called stainless steel; And the chemical corrosion resistance medium (acid, alkali, salt and other chemical etching) corrosion of steel called acid steel.

  • Electric

  • 6, the use of special formula and special UV absorbent, no fading, no yellowing, no peeling, no cracking, no foaming, no moth, the use cycle can be more than 30 years.

  • 2. Eliminate caked zinc residue on zinc liquid surface

  • 1. Put the cat carefully in the special basin for washing the cat. Keep your cat as calm as possible.
  • There is also a straight blade stabbing rope, which is mainly because the board and wire are not wound in the process of wrapping, so the blade stabbing rope produced is a straight product. The length of the barbed rope of this specification cannot be too long due to the limitation of logistics, and it cannot be bent because it is easy to be deformed by force. This is also the main reason why the barbed rope of the straight blade is not whole or long. Customers are advised to determine the spacing before purchase to prevent losses caused by no calculation.


  • Post time: 16-12-22
  • The life of the “wire”, is actually “low carbon steel wire”, carbon content in less than 0.2%. The surface is usually coated with zinc plating because it is easy to rust. Under atmospheric conditions, the galvanized layer will not rust before most of the fall off, relatively soft. The life of the “steel wire”, is carbon content in about 0.6% of the “carbon steel wire”, or carbon content in about 0.8% of the “high carbon steel wire”, they have enough hardness and elasticity after appropriate heat treatment, high strength. Uses such as winding ordinary spring and so on.

  • Galvanized

  • The form of installation: in the top and the cage tied together at least should be like the stone cage net that is closely combined not easy to use bad. If the local dressing is suitable, the stability of the structure can be increased. There are a lot of mesh edge method, if the stone cage net only hook in the cage edge and not compiled in the cage edge, even in relaxation.


  • Post time: 02-06-23
  • (5) We can surfacing the parts with wear and other failures, so as to obtain the surface surfacing layer with deep penetration, smooth surface and excellent performance.

  • Post time: 16-06-22
  • 1. Zinc layer thickness: under normal circumstances, the thicker the zinc layer, the better the corrosion resistance of electrogalvanized wire. This is because the increase in the thickness of the zinc layer can improve the self-corrosion performance of the zinc layer and form a better protective layer.
  • Aquaculture

  • At the time of production, the annealing wire will be processed according to the performance of the material. According to different needs, the degree of hardness and softness can be changed, which can make it have more advantages, reduce the consumption of metal and reduce the cost of production. In the use of the time does not need to carry out daily maintenance and maintenance, not only can save a lot of time, but also can reduce the cost, but also has good stability, strong corrosion resistance, greatly extend the service life.