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  • Leather crafting is an ancient art that has evolved into a highly specialized field, requiring precision and the right tools to produce quality products. Among the most critical tools in leatherwork is the industrial leather sewing machine. These machines are engineered specifically to handle the unique demands of sewing leather, making them an essential investment for both small businesses and large-scale manufacturers. If you are in the market for an industrial leather sewing machine for sale, it is important to understand its benefits and what to look for when making a purchase.


  • Understanding Double Needle Sewing Machines


  • Conclusion


  • Unlike standard sewing machines, professional upholstery sewing machines possess robust features that cater to heavier materials such as leather, canvas, and thick fabrics. These machines are built to withstand relentless use, ensuring durability and longevity. One of the standout features is their powerful motors, which provide the strong stitching necessary for thick layers of fabric. This capability is essential when working on large furniture pieces, car interiors, or custom projects that require a solid and secure finish.


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  • 4,  galvanized can be used zincate galvanized or chloride galvanized process, should use appropriate additives to meet the requirements of this standard coating.
  • The surface of alluvium before hot dip galvanizing of orchard special electric galvanized shaft wire can partially remove the surface film layer, surface impurity and other shortcomings according to the basic technology to find and solve; Excessive foam is caused by soap and soapable surface active substances such as human fat into the tank. A moderate rate of foam production would be fine. There are many fine homogeneous particles in the tank, can stabilize the foam layer, with activated carbon mat to remove surface active substances. Or make the bubble unstable according to overworry, these are all reasonable countermeasures; Other strategies should also be used to reduce the amount of surface-active substances introduced. The introduction of organic matter can make the electroplating process speed drop sharply. Although the secret recipe of organic chemistry is beneficial to the high accumulation rate, the thickness of the coating can not meet the requirements after the organic matter is brought in, so the activated carbon can be used to solve the tank.

  • 3. Straightening and cutting: straighten and cut the cold galvanized wire after drying to reach the set size and length.
  • Galvanized

  • On the contrary, the denser the ion deposition, the better the quality of zinc layer. Under the condition that the surface zinc layer is dense and bright, the quality of zinc layer per unit area should reach 80g/m2, and the process parameters should be optimized as follows: current density is 16-20A /dm2, mass concentration of zinc sulfate solution is 500g/L, and pH value is 2.5-3.0.

  • 3, the external environment, the climate is dry and ventilated environment is not easy to rust.
  • The common weight standard of galvanized barbed rope is 25kg per coil, and the length of each coil varies from 220-250 meters according to the specifications of the barbed rope. And of course we all know that the heavier the disc the longer it is. But there is one point that is worth our attention, that is, the hollow inside the general larger disk is relatively small, and the hollow inside the lighter galvanized thorn rope is relatively large. The purpose of this is to reduce the number of bending of the thorn rope and make it easier and more beautiful when installing, on the other hand, it looks larger in appearance.

  • Zinc-coated wire is dipped in molten zinc with high production speed and thick but uneven coating. The thickness allowed by the market is 45 microns, the color is dark, the consumption of zinc metal, and the base metal to form infiltration layer, good corrosion resistance, hot dip galvanizing can be maintained for decades in the outdoor environment.

  • The production process of large coil galvanized wire is relatively simple. The wire after cleaning is put into electroplating solution first. Of course, the plating solution should contain zinc oxide, a direct current of steel, another zinc plate in the plating solution. The zinc is transferred to the surface of the steel as a molecule. If it shows a bright and beautiful color, the wire is coated with zinc.

  • 2, line diameter, mesh spacing (refers to the edge of the twist to the opposite side of the distance).
  • No matter how old dogs are, they seem to love to touch noses with people and other animals. In fact, dogs touch noses as a way of socializing, just like humans shake hands and hug when they meet. But dogs don’t nuzzle every human or every animal. They pick and choose who to nuzzle. If they don’t like you, or don’t know you at all, they won’t touch your nose. However, adult dogs will touch almost every puppy’s nose, and they will not only touch the puppy’s nose, but also smell the puppy’s body.

  • barbed

  • The error of construction welding net diameter should be controlled at 0.02 mm. For example, we buy wire diameter of 89 wire welding net, with a micrometer to measure the diameter, the diameter of the allowable range is 87 -91 wire. In this range is qualified welding net. Because the accuracy has been compared, but no one can control it so well in the production process. The welding net can be accurate to 0.01 mm, so the error is allowed.

  • The specific design and layout principles are:

  • galvanized