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.
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。
2
JBP250-HP radical plunger pump is a high pressure as well as a large displacement plunger pump developed by our country. Connectingrod is one of the key spares.
HP型径向柱塞泵是我国开发的高压大排量柱塞泵，连杆是其中的关键零件之一。
3
Disclosed is a pressure dredging device without a rod, mainly comprising a draft tube, a connecting tube, a handle, a compressing ring and a regulating pawl.