Does Linear Combination Weigher have warranty period?1

What is the nano material? Nano-scale structural materials are referred to as nano-materials,It means that the size of its structural unit is between 1 nm ~ Between 100 nanometers.Since its size is close to the coherent length of the electron,Because of the self-organization brought by strong coherence, its properties change greatly.And,The scale is close to the wavelength of light,In addition, it has the special effect of large surface,So the characteristic of its performance,For example, melting point, magnetic, optical, thermal conductivity, conductive properties, etc,It is often different from the nature of the substance in its overall state.1. nano-materials have certain uniqueness,When the material scale is small to a certain extent,It is necessary to use quantum mechanics instead of traditional mechanics to describe its behavior,When the size of the powder particles is reduced from 10 microns to 10 nm,Although its particle size has changed to 1000 times,However, when converted into volume, t

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What is the precipitation well filter 5? The precipitation well filter is composed of simplified, stainless steel filter, sewage discharge part, transmission device and electrical control part. When working, the water to be filtered enters by the water inlet, flows through the filter screen, enters the pipeline required by the user through the outlet for process circulation, and the particle impurities in the water are trapped inside the filter screen.The filter pipe of the precipitation well is 2.5 long per section. for example, it is better to explain, such as the precipitation well of 17.5, the upper 13 m is a permeable layer, and the lower 4.5 m is a non-permeable layer, the filter tube is at least 7.5 m. The filter pipe must ensure that there is a filter pipe in the permeable layer so that the groundwater can be pumped out. If it is a non-well, it is usually half of the precipitation well. Water filter water filter is widely used in the fields of metallurgy, chemical industry, petroleum, paper making, m