Fuel Injector Part numbers

[bad six]

I need help with a fuel injector part number I recently bought this car and pulled the injectors. The previous owner said they were Kenne Bell 50lb injectors and there is a reciept showing 50lb injectors, however the part number on the injector is 01D030B they are three hole and there is a thin blue band at the top. I checked the part number on the web and it come back as delphi 42lb injectors does kenne bell do something different to them to call them 50lb injectors???