TriMas Corp. engages in the manufacture of industrial products for customers in the consumer products, aerospace, industrial, petrochemical, refinery, and oil and gas end markets. The company is headquartered in Bloomfield Hills, Michigan and currently employs 4,000 full-time employees. The firm operates through three segments: Packaging, Aerospace and Specialty Products. The Packaging segment is a designer, manufacturer and distributor of engineered closure and dispensing systems for a range of end markets, including steel and plastic industrial, and consumer packaging applications. The Aerospace segment is a designer and manufacturer of a range of products for use in the aerospace industry. The Specialty Products segment, which includes the Norris Cylinder and Arrow Engine brands, designs, manufactures and distributes highly-engineered steel cylinders, sealing and fastener products, and wellhead engines and compression systems for use within the industrial, petrochemical, and oil and gas exploration and refining markets.