wholesale jewelry findings sterling silver How to identify engineers shovel true and false
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ancient egyptian jewelry wholesale 1. First of all, the paint is not right. The hawker dare not use real army green. It is green anyway, anyway, most people can't see it. In fact, the real shovel of the first, two, and three generations is actually the army green. Black.
2, followed by the imitation of the ingenuity, there are outrageous appearances, all of which are, taking three generations of shovels as an example, some people sell "flat military iron shovel" and "pointed military shovel". Military equipment is the most durable and reliable. You must know that the more sharp the shovel head is, the smaller the force, the greater the force, and the greater the force.
3, there is also the handle of the handle. The real military shovel has a very weird corner. This is the most strong in mechanics. It avoids wavy folds, and this shape of the manufacturing process is difficult to achieve. Compared with imitation, there are similar shapes in comparison, but it looks like it is about to be folded.
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The military soldiers have been equipped and used in large quantities during the World War I. The number of troops in our army was the largest of the PLA Army. After the disintegration of the former Soviet Union, it was also the largest army in the world. Historically, the PLA was first used in the three major battles in the large -scale military use of military purposes. Previously, they were guerrillas. The authentic warfare was not the PLA and it was not a large range.
The after liberation, due to historical reasons, the Republic has made a large number of military strategies such as preparations for the wasteland and digging caves, and the construction of a large number of underground bunkers. It is included in the category of our military military equipment. It has not been uniform and real military engineering shovel before, and has always used very common long wooden handle iron shovel.
west coast jewelry wholesale login At present, the so -called engineering shovel sold on the market is mainly imitated by small commodities in Jiangsu and Zhejiang, and the objects of imitation are mainly three countries: China, the Soviet Union, the United States, and a small amount of imitation Germany. There are more imitation of the PLA, and the shovel of the first, second and third generations is imitated. 1. First of all, the paint is not right. The hawker dare not use real army green. It is green anyway, anyway, most people can't see it. In fact, the real shovel of the first, two, and three generations is actually the army green. Black. 2. Secondly, the appearance of the imitation of the 形 is outrageous, and there are all kinds of appearance. Taking three generations of shovels as an example, some people sell "flat military iron shovel" and "pointed military shovel." Military equipment is the most durable and reliable. You must know that the more sharp the shovel head is, the smaller the force, the greater the force, and the greater the force. There is also a part of the handle. The real military shovel has a very weird corner. This is the most strong in mechanics. It avoids wavy folds, and this shape of the production process is difficult to do. Compared with imitation, there are similar shapes in comparison, but it looks like it is about to be folded. 3. The technical parameters of the engineering shovel, the imitation dealer bought a real shovel, can make an exactly the same, but he still can't do a little: that is the details of the product after mass production! The most important thing for mass production of this kind of steel products is the mold. The accurate mold cost is very expensive. Only the mold is good. It can be used for many years to ensure that the quality of the quality is produced. Military factories should continue to produce for more than ten years without changing molds to make. Under normal circumstances, there are errors without production lines. After several production, errors are getting larger and larger. As long as it is any of the same type of shovel produced by the 6411 military factory, even if the production year is several years, the error rate does not exceed 1 mm. 4. The intensity of the engineering shovel, the real engineering shovel head and the production process of picking heads have changed the internal molecular structure, which can be bent 45 degrees and 3,000 times. The flexibility; and the hardness of its hardness is not generally achieved at the same time as flexible. The real engineering shovel can easily cut off 8#steel wire (like the connection line of a laptop computer, which is slightly thinner than the network cable.), And 锹 锹 锹The head will not be damaged. Many imitation 到 can now reach one of the standards of toughness and hardness, but it cannot break through the two items. 5. Use details of the engineering shovel. The real army shovel starts heavy and simple and simple. After the assembly is assembled, there will be no sound. There are very subtle and regular fish scale, and the handle is not. This feature is very important. The imitation military iron shovel cannot be done at all. All are spray paint. What is the difference between smooth engineering shovel and ordinary shovel. Workers shovel: The three generations of shovels were improved to fold twice. The handle is still a triangular streamlined linear. It has the functions of shovel, picking, crowbar (thorn), sawing, and knife. Increase strength, abrasion, corrosion resistance, high temperature resistance.