Germany is in second place in this list, with a combined iron and steel import value of $31 billion USD in 2014. The reason behind such immense iron and steel imports by Germany is that of its top position for iron and steel products across the world as a supplier, notably including automobiles and heavy machinery among them.
Rather, the red light comes on when the oil PRESSURE drops too low as determined by an oil pressure switch installed on the engine. No VW van ever came from the factory with an oil pressure gauge or oil level indicator, just a low oil pressure warning light. One-switch system: 1948-1985.
A variation of the high-pressure sodium, the White SON, introduced in 1986, has a higher pressure than the typical HPS/SON lamp, producing a color temperature of around 2700 K, with a CRI of 85, greatly resembling the color of an incandescent light.