Covestro LLC

For more than 35 years Liberty Pultrusions has been a leader in the fiberglass-reinforced plastic pultrusion industry. In addition to being a leading supplier of electrical composites, the company is also a major producer of fiberglass-reinforced plastic structural shapes for use in the corrosion and construction industries. Its structural pultrusions, pultruded electrical shapes and pultruded rod are used in a wide range of applications from fiberglass cooling towers to structural supports and ladder rail channels to transformer spacer sticks. Liberty Pultrusions is a privately held company that is located in West Mifflin, Pa. The company employs approximately 50 people.

Ace Wire Spring and Form Company offers manufacturers a distinct advantage over other companies when it comes to manufacturing springs and wire forms. Unlike standard spring companies that rely on extensive inventories of standard tolerance springs, Ace Wire Spring specializes in manufacturing springs and wire forms to the specific needs and applications of our clients. We custom engineer and design springs to tighter tolerances and control production quality to ensure the tolerance is maintained for each spring.

Founded over 45 years ago, Tri-State Plastics Inc. specializes in heavy-wall plastics part manufacturing. Based in Coraopolis, Pa., its manufacturing capabilities include vacuum forming, pressure forming, twin sheet forming, profile extrusion, injection molding, computer-numerically controlled (CNC) machining, die cutting, painting and assembly. It also renders an array of services, such as material selection, product designing, mold and tooling designing and construction. The firm caters to an array of market segments, including aerospace, government, defense and health care.