Vaporizer pens can be used to inhale a number of different materials. Often, people call vaporizer pens by names that indicate what they are used to vape. The three main types include: - The oil vaporizer pen, which is also called an oil pen or oil vape pen.
The United States is the world's largest economy with a GDP of approximately $18.56 trillion, notably due to high average incomes, a large population, capital investment, moderate unemployment, high consumer spending, a relatively young population, and technological innovation.
China is the largest export economy in the world. In 2016, China exported $2.06T and imported $1.32T, resulting in a positive trade balance of $736B. In 2016 the GDP of China was $11.2T and its GDP per capita was $15.5k.