50H Impact Resistant and Blast Mitigating Entrance 50H AND YHC 300 FRAMING 1-4 E9-0239 E9-0239 SECTION 1 SECTION 2 E9-0239 E9-0239 SECTION 3 Effective Date: August 14, 2018 | 01-1001-09 SECTION 4 Page-21