MIL-P-51431A, MILITARY SPECIFICATION: PLASTIC MOLDING AND EXTRUSION MATERIAL, POLYETHYLENE COPOLYMER, HIGH DENSITY (19 JUL 1988) [NO S/S DOCUMENT]
MIL-P-51431A, MILITARY SPECIFICATION: PLASTIC MOLDING AND EXTRUSION MATERIAL, POLYETHYLENE COPOLYMER, HIGH DENSITY (19 JUL 1988) [NO S/S DOCUMENT]., This specification covers two types of high density polyethylene copolymer used for extrusion and molding processes.