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Self-cleaning filter to overcome the traditional filtering products, quantity is small, vulnerable to contamination jams, filtering, part of the need to remove the cleaning and unable to monitor the state of the filter and so on shortcomings, with the raw water filter and the function of the automatic filter for cleaning pollution.
The personnel of the duty station authorized to set up the checkpoints shall show the highway inspection certificate issued by the general office of the provincial people's government and wear industry inspection marks when performing the inspection tasks. Without the above certificates and marks the illegal inspection.
(1) temporary suspension of trains and extra units;
The underground metal detector is made of advanced technology. It has the characteristics of wide detection, accurate positioning, strong resolution and easy operation. Metal detectors are mainly used to detect and identify metal objects buried underground. In addition to military applications, it is widely used in security inspection, archaeology and prospecting, and the search for scrap metal, which is also known as "iron probe", which is a good helper for waste recycling.
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