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American ETL Certification

American ETL Certification

CCC Certification

CCC daim ntawv pov thawj

EU CE Certification

EU CE Certification

ISO9001 Certification

ISO9001 Ntawv pov thawj

Korean KC Certification

Korean KC ntawv pov thawj

 

3C Certification

3C ntawv pov thawj

Patent Certificate1

Patent Certificate 1

Patent Certificate2

Patent Certificate 2

Patent Certificate3

Patent Certificate 3

Patent Certificate4

Patent Certificate 4

Patent Certificate5

Patent Certificate 5

Air duct connection device patent

Cua duct kev twb kev txuas ntaus ntawv patent

Air duct connection device patent2

Cua duct kev twb kev txuas ntaus ntawv patent2

Cold air duct connection patent

Cov cua txias duct txuas patent

DM-30

DM -30 

Dual fan fuel heater patent

Dual kiv cua roj rhaub patent

Fuel heater patent

Roj rhaub patent

Full water alarm patent

Lub tswb ntsuas dej puv patent 

Full water alarm patent2

Lub tswb ntsuas dej puv patent2

Gas station air conditioner patent

Gas chaw nres tsheb cua txias patent

Heat exhaust pipe connection patent

Thaum tshav kub kub tso cov yeeb nkab txuas patent

Industrial mobile air conditioner patent

Industrial mobile cua txias patent

Logistics machine patent

Logistics tshuab patent

Mobile industrial air conditioner patent

Mobile industrial cua txias patent

Patent for movable oil-fired heating room

 Patent rau movable roj hluav taws xob cua sov chav

Patented linear profile winding ventilation duct

Patented linear profile winding qhov cua duct

Refrigerator patent

Lub tub yees patent

Wide temperature machine patent

Dav kub tshuab patent

Winding ventilation duct patent

Winding qhov cua duct patent