... radius 6m-32m, manual and hydraulic, used in concrete transport of concrete pump in c Nameseparate concrete placing boomSizeSJ-6m SJ-8m SJ-10m SJ ... types upon customers requirement.MaterialQ235 steel, steel plateApplicationUsed in concrete transport of concrete pump in construction workService brands Schwing, PM, Kyokuto, Cifa, Zoomlion ...