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The rapid development of air filters is closely related to the development of military industry and electronic industry. In the first world war, the use of various chemical agents, asbestos fibre filter paper as the smoke filter layer of military gas masks came into being. The glass fiber filter medium is used in air filtration to obtain a patent in the United States in October 1940. In the 1950s, the United States studied the production process of glass fiber filter paper, and the air filter was improved and developed. In the 1960s, HEPA filters came out; In the 1970s, the filter paper of fine glass fiber was used as the HEPA filter of filter medium, and the filtration efficiency of particle size of 013 micron particle diameter was 99.9998%. Since the eighty s, with the emergence of new test method, use evaluation to improve and to improve the filtering performance requirements, found the HEPA filter there is a serious problem, and he had a higher ULPA filter performance. Countries are still working on it and expect more advanced air filters soon
20 cycles by the hour. The single acting hydraulic cylinders have drainage facility and top platform has a smooth surface. The hearings on pivot points are self lubricating and also the hydraulic power pack inside table are given with relief valve against overloading and compensated flow valve for controlled lowering speed. The electrical equipment is controlled by a digital system that carries a lv transformer and thermal overload protection. A wide range of accessories can be found combined with the lifts to achieve even higher safety functions where conditions require.
The transmission level for example fluid is been employed in excess amount and constantly look for a good wear. All the peaks and damages might be inspected. The assessment team checks the standard loosening of wheels and the nuts. The general condition from the wheel is usually to be checked as soon as the wheel safety checks team has given full report. Looking for best service in Oder to detect the inspection team the right maintains facility of sidewalls with the wheels.
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