... and other large objects Strapping.Types of packaging steel strip: original strapping, blue strapping and painted strapping(colors is ... brown, etc.)Physical Properties:(1) Type I ordinary steel packing strip: Tensile strength σb ≥ 58-78Kg/mm2(580-780Mpa), ... ), elongation: 3% -5%.(3) High quality steel packaging strip: high strength, good performance and well impact resistance. Tensile strength ...