The plastics industry manufactures polymer materials - commonly called plastics - and offers services in plastics important to a range of industries, including packaging, building and construction, electronics, aerospace, and transportation.
It is part of the chemical industry. In addition, as mineral oil is the major constituent of plastics, it is regarded a part of the petrochemical industry.
Besides plastics production, plastics engineering is an important part of the industrial sector. The latter field is dominated by engineering plastic as raw material because of its better mechanical and thermal properties than the more widely used commodity plastics.
Manufacturing processes are the steps through which raw materials are transformed into a final product. The manufacturing process begins with the creation of the materials from which the design is made. These materials are then modified through manufacturing processes to become the required part. Manufacturing processes can include treating (such as heat treating or coating), machining, or reshaping the material.
The manufacturing process also includes tests and checks for quality assurance during or after the manufacturing, and planning the production process prior to manufacturing.