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Intengo yefektri i-self-lubricant refractory carbon ...
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Intengo yefektri ye-graphite tube, eyenziwe ngomshini ...
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I-graphit evikela ukushisa okuphezulu esezingeni eliphezulu ...
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Ishubhu le-graphite lokumboza okungaphezulu, igrafu yosayizi omncane ...
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Sekela induku ye-graphite eyenziwe ngokwezifiso enokushisa okuphezulu ...
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Induku ye-Silicon esezingeni eliphezulu, induku ye-Sic yokucubungula ...




