Performence Features: 1.A fully welded structure,and compact high quality engineering,ensure minimum maintenance,together with simple and safe operation. 2.They have the function of air spring which can be installed inside the arm(optional). 3.With foot control.It is easy for operation an relax hand. 4.With foot control.It is easy for operation and relax hands for adjusting the material. 5.They have the function of air spring which can be installed the arm(optional). 6.The press blade and folding blade are segment structure. Technical Parameter: