Fixing our concrete problems | Eco-at-Africa
60.3 هزار بار بازدید -
8 سال پیش
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After water, concrete is the
After water, concrete is the substance most widely consumed by humans. This ubiquitous substance is highly polluting but a German firm has developed a way of recycling old concrete.
Read more: http://www.dw.com/en/tv/eco-at-africa...
Read more: http://www.dw.com/en/tv/eco-at-africa...
8 سال پیش
در تاریخ 1395/10/23 منتشر شده
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