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N'chifukwa chiyani ma Jack amakweza kulemera kwakukulu ndi khama lochepa?
Chodabwitsa cha "kubweza kwakukulu kwa ndalama zochepa kwambiri" kulipo kulikonse m'moyo wa tsiku ndi tsiku. Hydraulic jack ndi chitsanzo cha "kubwerera kwakukulu kwa ndalama zochepa kwambiri".Jackyo amapangidwa makamaka ndi chogwirira, maziko, ndodo ya pistoni, silin ...Werengani zambiri