This is Lea from kingkar co.,ltd.

We are a professional manufacturer and designer in the engine carbon cleaner area in Changsha, China.

Our HHO carbon cleaners have 12 major invention patents and have successfully passed ISO, CE, E13, and SGS certifications.

And in Europe and North America and other countries have high visibility and market hotspots.

It uses the HHO gas together with an HHO cleaning agent for double cleaning car engines, renews car engines in 20 mins without opening engines.

Pls feel free to contact me if you would like to know more!

Best wishes

Lea