B310/311/312 strapping tensioner packing material: PP, cord, PET straps aplication: wooden case, carton, wood material and etc B310/311/312 strapping tensioner is a kind of portable packing tool, its packing tape: PP, cord, PET plastic tape/ strapping band. This machine is made of high quality of steel alloy with advanced production technology, the structure is simple and has good figure, easy ...