Recently, U.S. researchers have successfully developed a new type of plastic, bio-steel, which has far more strength and toughness than ordinary plastics and has full biodegradability. American scientists believe that this material can replace plastics that cause white pollution in the future.

At present, the material is only used for important defense material packaging due to cost reasons, and it plays a role as a bullet-proof vest. With the gradual expansion of production and the reduction of costs, it is entirely possible for this material to be used for the packaging of general materials in the future. . Bio-steel is made from milk and goat's milk and is also called milk steel and goat milk steel. The fiber extracted from the milk produced monthly by a sheep can be made into a bullet-proof vest. Scientists named this material bio-steel. The biological steel made from goat milk and milk not only has the strength of steel, but also can be biodegraded and has no pollution to the environment.