Mafuta apulasitiki opangira mafuta ndi ofunikira kuti awonjezere moyo wawo ndikuchepetsa kugwiritsa ntchito mphamvu ndi friction.Zipangizo zambiri zakhala zikugwiritsidwa ntchito kwazaka zambiri kuti azipaka pulasitiki, Mafuta opangira mafuta opangidwa ndi silikoni, PTFE, waxes otsika kwambiri, mafuta amchere, ndi hydrocarbon yopanga, koma chilichonse chili ndi zosafunika. s...
Werengani zambiri