This specification is applicable to frames, grates, rings, and covers for inlets, manholes, and other structures for civil engineering use where items may be placed in traffic service and load bearing is a consideration.
AASHTO M 306-10 (2023)
Original price was: $78.00.$39.00Current price is: $39.00.
Standard Specification for Drainage, Sewer, Utility, and Related Castings
American Association of State Highway and Transportation Officials , 2010
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