SJ-PET series strap making machine automatic range strap winding uit automatic counting buzzer alarming SJ-PET series strap making machineSJ-PET strap making machine is designed and researched on the base of introducingh and assimilate advanced technologies at home and aboard,its stretching lubricates units are dirven by 20 CrMnTi hard alloy steel gear,and the gear in the oil,it can make the make ...