Mining industry features
[China Aluminum Network] The process and operation of mining your assets are called mining. The mining industry is the foundation of modern industry. Mining industry and national economy are only compared to his industrial class. It has the following characteristics:
(1) The construction of mines is restricted by mineral resources and cannot be freely chosen. Often due to the restrictions on the location of mineral resources, the construction, transportation, power, and life are inconvenient. As a result, construction and construction projects are intensified. Increased investment and construction cycle growth.
(2) The object of mining work is mineral resources, mineral resources have a certain amount, so the mine also has a certain number of years of service. After the resources are collected, the mine will end its existence.
(3) Due to the multiple conditions of the mineral resources, the location of the mining work also changes with the progress of the work surface. Because of the diversity of mining operations, the mining methods and workmanship of the 2nd mines also have to be associated with the ore deposits. As mining progresses, changes will be made. Therefore, it is particularly important to strengthen mine management and timely training and production progress and intensity.
(4) Some ore cannot be mined in the mining production process, resulting in loss reporting. In the process of mining and transportation, waste rock is inevitably mixed to reduce the ore grade (depletion). Reducing the rate of depletion and loss of mining work is an important qualitative requirement in mining operations.
(5) Mining operations are subject to objective conditions. In particular, underground mining, labor intensity, poor working conditions, poor safety, and difficulty in achieving mechanization and automation operations, mining operations should pay special attention to production safety and labor protection work.
Sharp Blade, used to cut things like wallpaper, so it is called "wallpaper knife", also known as "art knife". Decoration, decoration, advertising plaque industry is often used.
The most important feature of wallpaper knife is to use the segmented blade which is easy to replace. When using, it can fold off the non sharp section. It can keep the sharpness all the time without sharpening the knife.
Art knife, also known as carving knife or wallpaper knife, is a kind of knife used for art and handicrafts. It is mainly used to cut soft things. It is mainly composed of plastic handle and blade. It is a pull-out structure. There are also a small number of metal tool handles. Most of the blades are inclined. They can be broken along the line of the blade body with blunt blade. New blade appears, which is convenient to use. There are various sizes of art knives.
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