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Design illustration : In China, the sanitation workers in many cases unable to
return home in order to work to eat a hot meal, only to come out with a working
lunch, but the lunch is cold, so they should be for their design allows them to eat
a a hot meal product, which is warm cleaning working meaning of existence, to
transform existing advertising light boxes, combining solar heat absorption, making
incubator advertising light boxes inside the insulation and the heating was not only
energy-saving and environmental protection.
lin lihang ,