First, we have registered the world brand-- HHO. which can be used in many many countries, benefit for our customer and distributor.
Second, our used machine is the hydrogen and oxy-hydrogen machine before, although machine price is less, the effect is not good. 
 Per month we collected customers usage comment to our production department and R&D department for machine update.

HHO 6.0 carbon cleaner machine is the newest technology, new profit for all the person who wanna do a new business, or expand their own business.

Open another window for you, when the door closed.

1. Kingkar company valued all our customers idea and comments well. Because we know all of them can push me to be better.
2. We spent almost to 3 years to invent HHO 6.0 carbon cleaner machine.
3. Nowadays HHO 6.0 carbon cleaner machine can be seen visual effect by customer's eyes, experienced by driving.

Our Kingkar don't like always talking big, all needs to put into practice.

After you bought HHO 6.0 carbon cleaner machine, you can enjoy machine lifetime warranty--around 8 years. What's more, the easy-broken parts also are for free.

If HHO 6.0 carbon cleaner machine, quality problem? no cleaning effect?

30 days for return; 365 days for replacement.

Buy Kingkar HHO product, enjoy profit, no after-sales service worry.