A Growing Number of State DOTs Approve J-J Hooks MASH-Tested Restrained Precast Safety Barriers for Highway Use MIDLAND, Va., Sept. 29, 2015 (GLOBE NEWSWIRE) -- Easi-Set Worldwide (OTCQB:SMID), a subsidiary of the Smith-Midland Corporation, announces that the MASH-tested J-J Hooks anchored barrier has now...