LITRACON- the light-transmitting concrete

توضیحات:

Mr. Áron Losonczi inventor of Litracon - the light-transmitting concrete introduces his invention at Expo Real 2009.

لغات کلیدی:

Litracon, Budapest, Hungary, Business, Region, Losonczi, Áron, news, trade, show, environment, lecture, educational, talking

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