Red Valve has set the standard for solving the world’s toughest flow control challenges through unmatched elastomer design and manufacturing experience. Red Valve is dedicated to exceeding customer expectations with proven, creative, high-value solutions. Red Valve has a passion for…
In 1994, Hedin Evironmental was formed by Dr. Robert Hedin in order to provide science-based consulting services for a wide range of clients interested in mine drainage assessment and treatment. Dr. Hedin began researching mine drainage issues in 1988 at the US Bureau of Mines. He is one of the leading…
Back in 1919, a young Pittsburgh engineer named Albert Genter founded Duquesne Mine Supply Company to forge coal-cutting bits. The bits were well-engineered, and well-received by the market. At the suggestion of mine customers, Duquesne added button-head coupling pins to the product line, and then square…
United States Products Co was founded in 1917. The company's line of business includes the manufacturing of abrasive products. United States Products Co. was founded in 1917 as a manufacturer of lapping, grinding and polishing compounds. Extreme accuracy of lapped surfaces (flat or spherical) Close…