Walnut shells are crushed into a powder made from natural walnut shells. Carbon deposits are knocked off the valves and cylinder walls. 1 Piece x Walnut Sand Carbon Cleaner Machine. What is walnut powder (sand)?.
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AUTOOL Walnut Blaster, Engine Intake Valve Cleaner Machine, Automotive Engine Ca
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AUTOOL HTS558 Walnut Blaster Engine Intake Valve Cleaner Carbon Deposit Cleaning
