... tensile elongation,stronger anti-puncture,better uniform gauge than 2 layers.SGS We are a professional manufacturer and exporter ... stretch film, JAPAN is our main market. There are 6 productions liners in our factory,our supply ability is more ... longitudinal,lateral)Impact ability of pendulumTackinessLight transmission rateFrogdensityUm≥Mpa≥%≥N/mm≥J≥N/cm≥%≥%≤18-1938300,6001200.153.0922.520-2539300, ...