spider concrete placing boom is much preferred by construction units for its convenient and rapid installation and great free standing height so as to provide great convenience for constructors. It is particularly applicable to use in high-rise buildings and large-scale shopping centers. SANY Official Manufacturer HGR12-36m Concrete Placing Boom of Concrete Boom Pump PERFECT QUALITY CREATED BY SCIENCE AND TECHNOLOGY Full-hydraulic control, unexpected operating performance Rapid installation, as fast as possible Top configuration, intelligentized electric control system Balance valve controls boom cylinder to guarantee safety Improvement of service life by