As disc DN400 TS-CM 8M for this PO will not finished in 10.11.2013 according to order confirmation, so we have changed part id from NK4DE-04000-0C32 to NK4DE-04000-PC32 (disc TS-CM8M with pickling + heat treat) instead for serve you in shipment 10.11.2013. Enclosed, please find revised O/C for your reference. Spec of both is no different.