... and bottom-sealing bag making machine/ suitable for various of side-sealing bags of OPP LDPE,Propylene films Hot Cutting and bottom-sealing bag making ... sealing bags with the meltable material of OPP,LDPE,Propylene films. ( as the bag for socks, clothes, napkin, stationery ,etc.)2 ... of bag be controlled by the electrical machine, one is step-in electrical machine or the imported servo machine. ...