复合式弯辊液压缸缸体的上、下端分别装有上压板和下压板组成油缸，里面装有活塞杆和连接杆。
Upper and lower ends of the hydro-cylinder identity are installed upper pressure board and down pressure board, which has piston rod and connecting stick.
本发明所述的采用复合式弯辊液压缸的带钢轧机，属于冶金行业中的热轧 带钢设备。
The invention relates to a hoop rolling mill that adopts compound bowed roller hydro-cylinder.
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