I believe that it all makes perfect sense that the blood of Christ had to go onto the Mercy Seat of the Ark of the Covenant. I can't help but admire Ron's dediion and humility.
This page contains an alphabetical NCCI code list. Code Phraseology: 1860 Abrasive Paper or Cloth Preparation. 1748 Abrasive Wheel Mfg. Drivers.