Walnut sand is a pure natural polish material, its hardness was lower than metal but higher than carbon deposition,it will clean intake pipe and back side of intake valve thoroughly but no damage.A large amount of pores on surface of walnut sand which provide super adsorption capacity, non-toxic and corrosion preventive. Walnut Sand DE-Carbon Cleaner HTS558 Walnut Blaster Cleaner Automotive Valvetronic System Carbon Deposition Cleaning Engine Intake Pipe Valve Clean Machine 110V/220V,[Safe & Efficient]The Intake Pipe Valve Cleaner Machine uses walnut sand as cleaning agent. As an eco-friendly pure natural polish material, , It can clean the intake pipe and backside of the intake valve thoroughly without pipes damage and corrosion.Integrated Design】The walnut sand of Walnut Blaster Kit for.
