Manual Doors Manual Doors Usha Elevators produces a wide range of manual doors mainly for residential applications which guarantee high performance at competitive financials. Solid Built & yet light weight. Anticorrosive coating for enhanced life. Concealed & Vandal proof door closer, handle & Hinges. Concealed handle to enhance the aesthetics. Opening width starting from 600 Mm to 800 MM. Effective skin protection during installation to endure hostile site conditions.