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PLASTICS. BRITAIN'S plastics industry has more than doubled its production during the last five years and now has an annual output of about 320,000 tons. An important stimulant to this growth has been the rapid post‐war expansion of the chemical industry and its concurrent demand for corrosion‐resistant equipment. The plastics industry has not yet produced the ideal plastic which is easy to apply and use and yet has all the durable qualities such as resistance to acids, alkalis, solvents, oxidising agents, etc. It has, however, produced a range of products, each of which has particular qualities which make it attractive to use for particular applications.