... Material: Ductile Iron Process: Resin Sand Casting Machined by CNC and Vertical Lathe Controlled by CMM Machine Pump Frame The ... strictly by CMM Machine for high concentricity.Machined by CNC and Vertical LatheISO9001:2000Machined by NC MachineTapping the hole ... steel plate, Drilling, Milling, Turning, Boring, Slating, Grinding,, NC/CNC Machining etc.4) Tolerance is controlled by CMM Machine.5) OEM ...