Quality Grades  Standard Duty (Regular Duty)       Standard Duty Strapping is manufactured from Cold Rolled, Mild Carbon Steel  and Heat-Tempered       to apply most of general packaging use.  Intermediate Hi Tensile (Semi Heavy Duty)       Some of Industries are emphasized Higher Strength for their own unique character of package.  Hi Tensile (Heavy Duty)       Heavy Duty Packages are required enough Higher Strength & Elongation Strapping.