Specification: 1.10uAL/15uPET/10uAL Thickness:38u+/-4u 2.10uAL/25uOPE/10uAl Thickness:50u+/-4u Size: 5mm-600mm External diameter: 400mm Standard: SJ/11138-1977Tensile strength:>=50MPa Breaking elongation:>=15% Bond strength:>=4 N/cm