Certificate

It is a certificate of Changhwa Energy Co., Ltd.

Quality Management & Certificate of Venture

Grate Incinerator with Multi-tube Boilers 10-1732937
Rotary Kiln Burner 10-1426660
Combustion device 10-1333996
Composite Type Boiler 10-1607238
Water Tube Type Boiler 10-1609660
Double Tube Type Boiler 10-1607239
Boiler 10-1333955
Boiler Using Electricity 10-1612941
Multi-tube boilers having Simultaneous Heat Source with electricity and fuel 10-1740533
Electric boiler 10-1724350
Electric Boiler Combined with Waste Heat Collection Boiler 10-1734069
Steam Turbine 10-1810186
10-17844120001
STEAM GENERATOR 10-1917713
Improved combustion efficiency
Rotary kiln 10-1887584
Heat exchange structure of heater 10-1925623
Automatic type combustion apparatus
and boiler incorporating the same 10-1894553
Electric steam boiler 10-1991373