Central Wire & Iron Works
Security wire mesh partitions, window guards, lockers and related products to the construction industry, government agencies, correctional institutions, hospitals, schools, museums, etc. Low and tall partitions to 20'.
KaneSterling 
Kane Screens/Kane Detention – For over 50 years, Kane Screens has been manufacturing more than 20 models of security screens that meet or exceed all security levels. Likewise, Kane Detention provides security screens for correctional facilities in three levels of protection to deter escape, prevent vandalism or contain detainees within prison walls.
Rasco Industries
Bug Blocker Overhead Doors provide security, ventilation, prevents entrance by unauthorized people, insects, birds, rodents, etc. Chain-Link Security Doors are overhead doors providing ventilation, preventing unauthorized entry using 2" fencing material. Service Door Screen Inserts are framed screen windows for hollow metal doors. Air Inlet Screen Panels add-in screens for air inlets and louvers.