19-years experience, obtain 10 invention patent, 11 utlity patent, and 3 desgin patent
USA invention patent for double cleaning technology(new)
One device of anti-backfire
Oxyhydrogen gas Cutting gun and gun torch
Mixed gas garbage incinerator
Brown gas burner
Duel-fuel burner
Brown gas burner
Oxyhydrogen generator through Eleetrolysed water
Multi-layer wet tempering anti-backfire
Oxyhydrogen gas Cutting gun and nozzle
Brown gas burner
Exported to 98 countries, HHO brand and Kingkar brand already registered in Spain,Europe, UK, Australia, Korea, Mexico, India, Philippines, etc
HHO trademark registration in EU
HHO trademark registration in Korea
KINGKAR trademark registration in Korea
KINGKAR trademark registration in Mexico
HHO trademark registration in Mexico
KINGKAR trademark registration in Australia
HHO trademark registration in India
KINGKAR trademark registration in India
KINGKAR trademark registration in Philippines
HHO trademark registration in Philippines
HHO trademark registration in America
KINGKAR trademark registration in America
KINGKAR trademark registration in Thailand
HHO trademark registration in Thailand
HHO trademark registration in UK and Ireland
KINGKAR trademark registration in UK and Ireland
International certification: CE, ISO, SGS, ROHS, MSDS High-tech enterprises, top Ten Online Businesses in Hunan ( 2016 Awarded by Alibaba etc).
President Company of Changsha Cross-border Trade Association
National High-Tech Enterprise
Audited Supplier awarded by Made-in-China website
SGS certification
HHO6.0 machine CE certification
HHO6.0 machine CE low voltage
HHO cleaner agent test report
HHO cleaner agent MSDS
HHO cleaner agent air shipment certification
Cleaner agent sea shipment certification