l  Enamel: imported from USA Ferro who is the worldwide biggest enamel manufacturer;

l  Inner tank steel: from Baosteel who is the Chinese biggest steel manufacturer;

l  Steel surface cleaning Grit: imported from French W Abrasives who is the worldwide biggest abrasives manufacturer;

l  Pressure and Temperature Relief Valve: imported from Canadian Watts;

l  Thermostat: imported from USA Emerson;

l  Electric Element: from Japanese company Kawai.