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塑料与混凝土、钢铁、木材并称为四大工业材料。随着新技术革命的不断发展,塑料生产的年增长率已居四大工业材料之首。世界范围内,近年来塑钢比已达15％,美国最高达30％,德国次之为22％。以世界范围计,塑料的产量约一亿多吨,与钢铁的体积产量之比已达到92％。塑料不仅为工农业生产建设提供各种各样的新产品和新材
Plastics and concrete, steel, and wood are also called the four major industrial materials. With the continuous development of the new technology revolution, the annual growth rate of plastics production ranks first among the four largest industrial materials. Worldwide, in recent years, the ratio of plastic steel has reached 15%, the highest in the United States has reached 30%, followed by Germany with 22%. On a worldwide scale, the output of plastics is about 100 million tons, and the volumetric output ratio of steel has reached 92%. Plastics not only provide a wide range of new products and new materials for industrial and agricultural production and construction