"NSN IS USED TO PURCHASE A MINIMUM OF 20CONTAINRS TO A MAXIMUM OF 59 CONTAINERS;WC 10CO 4CR,BLOCKY/SINTERED AND CRUSHED;-45+11 UM (-325+11 UM);IDEAL FOR HARD CHROME REPLACEMENT.RESISTANT TO EROSION AND ABRASION.RECOMMENDED FOR USE IN WATER BASED SOLUTIONS.THE COCR MATRIX PROVIDES HIGHER ABRASION AND CORROSION RESISTANCE THAN CO MATRIXES.USED IN THE PAPER INDUSTRY FOR PROTECTING ROLLS AGAINST WEAR IN WET CORROSIVE ENVIRONMENTS"