A <url href="http://haomei.biz/products/Trailer-Concrete-Pump/" option="http://haomei.biz/products/Trailer-Concrete-Pump/">concrete pump</url> is a machine used for transferring liquid concrete by pumping. There are two types of concrete pumps.<br />
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The first type of <url href="http://haomei.biz/products/Trailer-Concrete-Pump/" option="http://haomei.biz/products/Trailer-Concrete-Pump/">concrete pump</url> is attached to a truck or longer units are on semi-trailers. It is known as a boo
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