Kui soovid oma küsimusele vastust, jäta meile oma e-posti aadress.
Aitäh, oleme tagasiside kätte saanud.
a substance capable of reducing friction, heat, and wear when introduced as a film between solid surfaces (as oil or grease for metal bearings, graphite for sprocket chains, soap of paraffin for wood surfaces, cutting compound for lathe tools)
