1. Electroless nickel plating is a new electroless chemical nickel-phosphorus alloy plating process. 2. The process has excellent stability with low, medium, and high phosphorus chemical nickel plating with different phosphorus contents. 3. Electroless nickel plating provides a semi-bright to bright coating with excellent corrosion resistance and meets the requirements of MIL.SPEC.26074D and AMS.2404B. 4. It can be applied to the petroleum, chemical industry, electronic industry, computer, aerospace industry, textile machinery, precision instruments, moulds, automobile industry, and other fields.