How about par can lights after-sales service?

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How about par can lights after-sales service? 1

Household water purifier filtration technology and accuracy are mainly divided into why? According to its filtration technology and corresponding accuracy, the household water purifier can be divided:1. micro-filtration technology (MF): The filtration accuracy is 0.2 microns, which can intercept most bacteria and cannot effectively intercept viruses. it does not remove minerals from water and does not change the pH value of raw water;2, ultrafiltration technology (UF): filtration accuracy of 0.01 microns, can intercept bacteria 99.99999%, virus blocking rate of about 99.6%, do not remove minerals in the water, do not change the pH value of raw water;3. filtration technology (NF): The filtration accuracy is 0.001 microns, which can effectively intercept bacteria and viruses and remove most minerals in water, but only about 40% of the removal rate of sodium and chloride ions, it will change the pH value of raw water to about 6.0;4. reverse osmosis technology (RO): The filtration accuracy is 0.0001 microns,

How to prove that the soft water device is not a medical device, what items are it, and what kind of items are it attributed? Soft water device is a kind of water treatment equipment,Water softening equipment is not a medical device.You can see the following definitions: [medical devices] medical devices refer to instruments, equipment, instruments, in vitro diagnostic reagents and calibrators, materials and other similar or related items directly or indirectly used in the human body,Include the computer software required.Utility is mainly obtained by physical means,Not obtained by pharmacology, immunology, or metabolism,Or although these methods are involved, they only play an auxiliary role.The purpose is to diagnose, prevent, monitor, treat or relieve the disease;Diagnosis, monitoring, treatment, mitigation or functional compensation of injury;Examination, substitution, regulation or support of physiological structure or physiological process;Support or maintenance of life;Pregnancy control;By examining sa

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