Likarolo tsa metallurgy tsa phofo li sebelisoa haholo lienjineng tsa likoloi.Pulley ea phofo ea metallurgy le lisebelisoa tse ling li theha pulley e sa sebetseng, hammoho le khetla e tsitsitseng, letsoho la tsitsipano, seliba sa torsion, rolling bearing le sleeve ea selemo ho theha tensioner, e ka fetolang tsitsipano ho latela ...
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