... 2.adopt advanced technology 3. resonable price PP/PET packing strap production line characteristics 1. Technologies about Equipments and crafts ... are new. DN series PET strap auto-production line is a new production line what introduce ... DN I1700KG60 single-screw, single strip, cold roller, I grade extension. DN II2500KG65 twin-screw, double strip, cold roller, PLC ...