The products includes five series: crusher, sand making machine, powder grinding mill, mineral processing equipment and building materials equipment.Feb 072020&0183;&32;Aggregate demand is the demand for all goods and services in an economy. The law of demand says people will buy more when prices fall. The demand curve measures the quantity demanded at each price. The five components of aggregate demand are consumer spendingbusiness spendinggovernment spendingand exports minus imports. .
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