ONE PLATE : Single Component Electroless Nickel from Plating International, Inc. This patented process is the only Single Component on the market today; allowing you to use the same product for both make up and maintenance. Traditional EN was developed using (3) components ( A, B, &, C) and make up between 21-22 % by volume; ONE PLATE was developed with just (1) single component that makes up at 15 % by volume. Our products are ELV/Rohs complaint and available in Low, Mid, and High Phosphorous.