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ASTM100 Barr Harbor Drive West Conshohocken, Pa 19428-2959 Office: 610-832-9585 Fax: 610-832-9555 Cost: call for information
Corey Johnson Specifications Engineer Maryland State Highway Administration Office of Materials Technology 7450 Traffic Drive Hanover, MD 21076 Office: 443-572-5172 Fax: 410-787-0483 Email: CJohnson15@mdot.maryland.gov
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