SIDE WALLS (Housings) :Fabricated from mild steel plate. The internal portion of the body is further strengthened to support vertical and horizontal supports.CAMS :Designed from Mild Steel & are connected with the lower beam. UPPER BEAM :Fabricated from heavy steel plate machining its every surface ensuring perfact job as it functions in the slide.KNIFE :Fabricated from mild steel and sharpened up to 20° after machining.