The functions of each part of the pliers are as follows:
In use, do not throw,to avoid damage to the insulating plastic pipe.
The functions of each part of the pliers are as follows: Long Nose Pliers,Long Needle Nose Pliers,Knipex Long Nose Pliers,Extra Long Nose Pliers Henan Huajiang Industry Co.,Ltd , https://www.hj-industry.com
1. Low product quality, poor brand awareness, and low-grade products. Domestic high-grade diamonds can only be produced by China-Africa Artificial Crystal Research Institute and Baoding Octopus Wende Diamond Company, but the output is very low, and a large number of imports are imported. It can be said that the high-end diamond market is basically monopolized by imported goods.
In terms of variety grades, according to the use of diamonds, the British Debeers company has a total of 44 brands, the United States GE company has a total of 25 brands; China has only 11 brands, and the most high-end DMD level has no commercial products. The number of grades is small and not fine, which affects the research and development of diamond products and the improvement of quality level. In addition, the vast majority of the domestic synthetic diamond market is still based on the single-particle compressive strength, that is, how many kilograms, and does not care about the brand.
2. Slow development of products The most used saw blades for stone processing in China are mostly made by increasing the density of low-grade diamonds, and the diamond grade is selected to be lower, even adding some silicon carbide powder to strengthen the hardness. The lead caused the equipment to be vulnerable, the waste of stone materials, the processing efficiency is low, the power consumption is large, and more importantly, the quality of the stone processed with this saw blade is not good, but not the price of the high-grade building. No need to import plates to decorate. At the same time, domestic high-precision saw blades for sawing and other tools for high-precision stone processing are basically imported products.
At present, the situation of machining, especially the super-hard abrasives for car processing, has not been effectively reversed, and domestic products are only used in auxiliary processes such as sharpening. The first reason is that the level of domestic grinding tools is low; the second is that a perfect grinding test base has not been established. Most of the newly developed products are used in the production field to test the grinding parameters. Most manufacturing companies lack high-precision product production equipment (lines), although A few manufacturers have purchased and introduced advanced production equipment, but the total application is narrow, and most equipment can only meet the needs of general products. The shortage of funds for a large number of domestic diamond product manufacturers is basically due to the difficulty of producing medium and low-end products.
Another reason for the slow development of products is that the development of product development is far less than the development of diamond single crystals, the capital investment is less, and the information exchange is not enough. 3. Disorderly competition and market chaos. In the past two or three years, the number of large presses with more than 612 MN in the industry has exceeded 800, causing excessive production of middle and low-grade diamonds and serious price declines. Based on the decline for several consecutive years, this year It is also down 20% from last year, causing vicious competition. The trading method of spot cash has been broken for many years, and the wind of credit sales has emerged. The prices of diamond general-purpose products such as saw blades, grinding wheels and plating tools are also declining year by year, and the competition is fierce.
4. Weak technical strength and poor technical development conditions Due to the lack of research and development funds, innovative medium- and long-term research projects with good development prospects are difficult to carry out, the loss of scientific research personnel is serious, the technological strength of the industry is becoming weaker, and innovation is reduced. After the accession to the WTO, China's synthetic diamond industry is an early emerging industry that entered the market. It has won a large share of the international market with medium and low-grade diamonds. The export volume accounts for 40% of the total output, and the annual export volume is nearly 400 million carats. It is a large country of synthetic diamond production and a major exporter. However, the export of synthetic diamond products is less. Experts predict that the entry into the WTO will have a lot of advantages and disadvantages for the synthetic diamond industry. The main impacts are as follows:
Conducive to the structural adjustment and industrial upgrading of the industry, which is conducive to making full use of foreign capital, foreign advanced technology and management experience and market resources, thereby promoting technological progress in the industry; helping to break trade barriers and regional protection in some countries and regions, and changing dependence on entrepot trade The situation is conducive to direct trade, which is conducive to the further expansion of the export market; it is conducive to the promotion of product quality standards and international standards.
At the same time, foreign high-grade diamonds and various precision and high-efficiency diamond tool products will flood in, which will have an impact on the domestic market and will have adverse effects on the industry, especially the product enterprises.
Domestic diamonds and products are being developed or not yet developed, and there may be a monopoly of foreign products. Development trend Looking into the 21st century, China's synthetic diamond industry will have the following development trends.
The production of synthetic diamond single crystal will further develop towards large-scale and intensive development. The lack of capital and technical support and the survival of small enterprises without characteristics will be more difficult. The diamond industry belongs to the high-tech industry, and the knowledge level of employees will be greatly improved. More Gaozhi people will join the industry; the process of producing high-grade diamonds with large presses above 612MN will be perfected in a few years, and the development of high-grade diamonds produced by six-face presses will be further accelerated, and high-grade diamonds will be further accelerated. The production ratio will be greatly increased.
The two-face top technology will be greatly developed. The domestic two-side top press will gradually realize large-scale, and the introduction of two-side top press will be put into commercial operation. The annual-wheel mold will greatly increase the localization rate and gradually realize localization.
Research on the synthesis of raw materials such as powder catalysts, powdered graphite and pyrophyllite for commercial grade diamonds will be progressing.
The diamond industry standard will be in line with the international standards in the early 21st century, and the diamond sorting and testing technology will be greatly improved and perfected.
Various diamond products will be developed to high grade to meet the increasing demand for high precision machining of stone, glass, ceramics and machinery.
The export channels of diamond single crystals and products will be further expanded, and the international market share will become larger and larger.
In short, China's diamond industry has grown from scratch, from small to large, and has become a world-famous industry, making a positive contribution to China's economic construction. At the beginning of the 21st century, the diamond industry has turned from a big to a golden age. We have reason to believe that the Chinese diamond industry has the ability to catch up with the world's advanced level and realize the dream of a diamond power!
(1) Jaws: can be used to hold objects;
â‘¡ Teeth: can be used to tighten or loosen the nut;
Knife edge: can be used to cut wire, wire, can also be used to cut flexible wire rubber or plastic insulation layer;
The guillotine: can be used to cut wire, steel wire and other hard metal wire;
The insulated plastic pipe of the pliers can withstand pressure of more than 500V, with it can be charged to shear the wire.
(1) Jaws: can be used to hold objects;
â‘¡ Teeth: can be used to tighten or loosen the nut;
Knife edge: can be used to cut wire, wire, can also be used to cut flexible wire rubber or plastic insulation layer;
The guillotine: can be used to cut wire, steel wire and other hard metal wire;
The insulated plastic pipe of the pliers can withstand pressure of more than 500V, with it can be charged to shear the wire.
In use, do not throw,to avoid damage to the insulating plastic pipe.
In the past 37 years, China's diamond industry has flourished and formed a unique and complete industrial system. However, there are still many problems. The main aspects are as follows.