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Is industrial swivel casters tested before shipment?
Zhongshan Dajin caster Co.,Ltd.works hard for the best interests of our customers. Welcome to visit our factory! Focus on the Production of industrial swivel casters for Years rollerblade casters produced by Dajinstands out among many products in the same category. And the specific advantages are as follows. With a focus on customers' potential needs, Dajinhas the ability to provide one-stop solutions.

Make a simple water purifier Give you some information about the filter structure of quartz sand: Upper anthracite (activated carbon ),Medium quartz sand,The lower pebbles (large particle size quartz sand) play a supporting role: Micro-coagulation removes suspended matter, particulate matter, colloidal matter, algae, microorganisms and some colloidal substances in the water,Quartz sand filters reduce turbidity in water.Quartz sand filter it can remove colloidal substances and large particles.When the colloidal particles flow through the filter layer of the multi-media filter,The filter gap screens the suspended matter to make the suspended matter easy to intercept on the surface of the filter material: the pressure difference between the inlet and outlet water is greater than 0.07MPa to wash back.When a certain amount of dirt is trapped on the surface of the filter material to form a filter membrane,The front and back differential pressure of the filter will rise quickly over time,Until it fails.At this time

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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