Best Walnut Sand Car Carbon Cleaning Machine
What is walnut powder(sand)?
1. Crash walnut shell into powder, after a vigorous selection process then we get walnut sand.
2. It show high performance in the three area: hardness, anti-pressure, wear-resisting.
3. A large amount of pores on surface of walnut sand which provide super adsorption capacity, non-toxic and corrosion preventive.
4. It was hardly dissolved in acid, alkali and water.
5. 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 damag
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