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  • Double needle sewing machines are essential tools in various sewing applications, particularly in the garment industry, upholstery, and any projects that require precision and durability. These machines are designed to use two needles simultaneously, allowing for the creation of parallel lines of stitching, which not only enhances the visual appeal of the finished product but also adds strength to the seams. As with any specialized equipment, the price of double needle sewing machines can vary significantly based on a range of factors.


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  • The large roll of galvanized wire is like the literal meaning, is wrapped in a layer of zinc on the surface of low carbon steel wire material, beautify the appearance at the same time, but also improve the corrosion resistance of galvanized wire. Zinc dissolves easily in acids and also in bases, so it is called a bi-soluble metal. Zinc changes little in dry air. In moist air, a dense basic zinc carbonate film forms on the surface of zinc.

  • In the rolling process, if the surface of the steel wire is rough, the relative friction coefficient of the steel wire and roll increases, the friction resistance increases, the steel wire elongation decreases, the width increases. In the production of weighted leather material is easy to wide, is because of its rough surface. On the contrary, the surface of the steel wire is smooth, because the friction resistance between the steel wire and the roll is small, it is easy to extend, and the width is small. Domestic steel wire in order to prevent rust, the surface coated with butter, such as butter removal is not clean, easy to slip when rolled flat, also affect its width.
  • Positive twist: Twist two or more pieces of wire into a double wire rope and then wrap the wire around the double wire. It’s called a positive twist cord which is a common double strand cord.
  • The mesh size of the wire mesh specification, as well as the diameter and thickness requirements, are limited to the amount of steel and galvanized per square meter. Mainly in order to consider the corrosion resistance, prolong the service life, and in the use of the process of safety.

  • Galvanized

  • 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.

  • The color of powder coating is divided into: blade blue, grass green, dark green, yellow. Spray blade gill net by hot-dip galvanized steel plate or stainless steel sheet stamping out sharp knife sheet, high tension galvanized steel wire or stainless steel wire as the core of the resistance device. Because the barbed wire shape is not easy to contact, so it can reach an excellent barrier effect. The primary raw material of the product is galvanized sheet, stainless steel plate, high quality low carbon steel wire (electric galvanized, hot galvanized, plastic coated, plastic sprayed) wire, blue, green, yellow and other colors.

  • Using the patented technology of the invention, regularly put zinc block into the plating aid pool, so that the bivalent iron in the plating aid into trivalent iron, and play a stable PH value in a numerical range of an important measure, but also easy to filter out the trivalent iron ions in the plating aid; Ferric ion is controlled between 0.3 and 1.0g/L; When hydrogen is not released in the plating aid, the zinc block is continued. It is an effective measure to reduce zinc slag, improve the fluidity of zinc liquid and reduce the thickness of zinc layer to play the role of plating aid filter.

  • Hot

  • “In the booming pet industry chain, pet supplies market occupies a large share, which covers hundreds of categories such as toys, food, clothing and thousands of products.” An industry insider pointed out that the country’s pet supplies market is characterized by a wide variety of products, little competition and huge market potential.

  • The spray blade has strong adhesion and mechanical strength, and is widely used in the isolation and protection of the boundary of grassland and railway, as well as the protection of garden apartments, units and prisons. The following Haorong for you to introduce the characteristics of spray blade rope.

  • According to the different technology is divided into different types, you can choose according to your own needs. Has good flexibility and elasticity, the main role of annealing wire is to control its degree of softness and hardness, when the annealing wire is made of steel wire, now more used in the construction industry bundle use, compared with ordinary iron wire is also softer, has a better luster.

  • 3. Zinc layer structure: The structure of zinc layer includes grain size, grain shape and the combination of zinc layer and substrate, etc., which has a certain impact on corrosion resistance. In general, the finer the grain size, the denser the structure, and the better the corrosion resistance.

  • Post time: 12-01-23

  • hot

  • Electric welding net welding after galvanized is after the completion of the welding and then cold galvanized or hot galvanized; After the first galvanized welding is to change the wire welding mesh, welding can be seen after the completion of the welding spot; The two processes are different prices are also very different, the cost of the first plating after welding is low, the surface is smooth, and the cost of the first welding after plating is higher, not easy to rust.

  • Many customers often ask: a kilogram of barbed rope to less than meters? How much does a barbed rope weigh in a meter? And so on the common problems, today Haorong screen manufacturers for everyone to answer.

  • Now the production of stainless steel blade barbed rope unless it is specially customized model, under normal circumstances is the use of 22mm knife length mold production, that is, we usually say BTO-22 type. It is not necessarily such a specification from 11mm to 65mm are specifications. Unless the customer insists on the length of the customized requirements, the barbed rope manufacturers produce is BTO-22 stainless steel blade barbed rope.

  • 2. The cleaning agent used for cleaning should have no effect on the binding force of the coating and no corrosion on the matrix.

  • Galvanized hexagonal net is a galvanized metal wire mesh, the shape of the grid is hexagonal.
  • Barbed rope often appears in another model: 14*14# barbed rope, 12*12# barbed rope, 12*14# barbed rope, among which the diameter of 14# wire is about 2.0 mm, the diameter of 12# wire is about 2.65 mm, there is a non-standard 2.25 mm is also commonly used line. According to this specification, a kilogram of 14*14# barbed rope is 12 meters, a kilogram of 12*14# barbed rope is 8 meters, and a kilogram of 12*12# barbed rope is about 5 meters.
  • Post time: 21-04-23

  • The main customers of the thorn rope factory are still targeted at farms and plantations, because the demand for thorn rope is often very large.

  • Hexagon mesh weight calculation method is: hexagon mesh weight calculation method: wire.× wire.× base x length x width ÷2=kg base: 1/2′=2.151′=1.273/4′=1.65/8′=1.875/4′=1.091′x1/2′ : 3′=0.4 warp.× Warp.×2x length x width ÷8×3=kg

  • Products are widely used in construction, handicrafts, wire mesh, highway guardrail, product packaging and daily civilian and other fields. Galvanized wire is divided into hot galvanizing, cold galvanizing, electric galvanizing, hot galvanizing price is high, the price of electric galvanizing is low. Hot dip galvanizing is not easy to rust, electric galvanizing is easy to rust, this is a simple discrimination. Hot dip galvanizing is dipped in zinc liquid melted by heating, with fast production speed and thick but uneven coating. The market allows a low thickness of 45 microns and a high of more than 300 microns.

  • Post time: 30-08-22
  • Post time: 15-02-23

  • Benefits of using a pet cage:

  • Post time: 20-10-22
  • The acid activation solution in the production process can remove the corrosion products and oxide film on the surface of the low carbon steel wire without excessive corrosion to the matrix. Galvanized wire can be zincate galvanized or chloride galvanized process, should use appropriate additives to obtain the low carbon steel wire standard requirements of the coating. When galvanized wire after light plating should be light treatment. Control the temperature of the bath of galvanized wire.

  • galvanized