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They have the property of excellent resistant-corrosion, high mechanical strength,high
thermal conductivity, good self-lubrication, used as seal face, bearings and tubes in
spacecraft, machinery, metallurgy, printing and dyeing, foodstuff , pharmaceutical,
auto industry and so on. When the sic faces are combined with graphite faces the
friction is the smallest and they can be made into mechanical seals which are able
to work in highest working requirements.





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