- sulphurized steel
- сульфидированная сталь
Англо-русский словарь по машиностроению. Академик.ру. 2011.
Англо-русский словарь по машиностроению. Академик.ру. 2011.
EP additive — EP additives, or extreme pressure additives, are additives for lubricants with a role to decrease wear of the parts of the gears exposed to very high pressures. They are also added to cutting fluids for machining of metals.EP additives are… … Wikipedia