Type: Cantilever type, 3 upper and 4 down with one press roller, with separate oil circulation lubricating system A. Supply scope: Drafting box, roller, retarder, motor, motor of oil pump B. Type: Cantilever type, 3 upper and 4 down with one press roller, with separate oil circulation lubricating system C. Drafting roller: Chrome plated with thickness of 0.1mm, gear precise: 8-7-7 grade