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15Days Ago (05-12)
What are the raw materials for the increasing price of cars? This year, as supply cannot keep up with demand, many basic materials (such as copper, steel, and aluminum) for automakers have reached or are about to reach their highest prices in history. Bl.
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50Days Ago (04-07)
What is a thermal insulation board by foamer concrete ? Chemically foamed external wall insulation board is a new type of energy-saving insulation material that expands cement paste through chemical reaction and has airtight and uniform pores inside afte.
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