Other standards detail the property and testing. requirements for gray and white iron castings, cast. iron pipe and fittings, and ductile iron castings. This volume also includes standards on. radiographic examination of castings to be used. with ASTMâs standard reference radiographs.
The free enterprise system in the United States developed soon  after the country gained its independence. This is a system that  allows people or entities to establish theiâ¦r own company, taking a  competitive stance with other businesses, and operate it for their  own profit.
Part of the reason those in the U.S. do not face this situation is because of the free enterprise system. It is important to note that free enterprise systems can vary and differ in how 'free' they actually are. The United States and Singapore are two examples of countries that reflect the most free enterprise systems.