1. SF-2 oke lubrication na-ebu: acid elu polyoxymethylene, nke nwere oke mgbochi na-eyi akwa, a ga-eji mmanụ griiz kpuchie ya mgbe niile na oghere nchekwa mmanụ n'oge mgbakọ, karịsịa LFB mmanụ na-enweghị mmanụ.Ntugharị rotary dị ala, ngagharị na-ama jijiji ma na-ebukarị ibu, ọ bụghị…
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