... plastic film, outside wrapped with linen or compound corrugated paper. 0.36 * 12.7mm 0.36 * 16mm 0.5 * 16mm ... strength σb ≥ 78-90Kg/mm2 (780-900Mpa), elongation: 3% -5%.(3) High quality steel packaging strip: high strength, good performance ... /2", 5/8"(0.36mm × 9.5mm, 12.7mm, 16mm)BWG27 × 3/8", 1/2", 5/8"(0.40mm × 9 ... 19mm)BWG23 × 1/2", 5/8", 3/4"(0.60mm × 12.7mm, 16mm, 19mm)BWG22 × 3/4", 1", 5/4"(0.70mm ...