... asymmetry structure. The CPA series cover five t Five layer co-extrusion blown and casting polyamide film (CPA)With PA,EVOH ... as barrier layer, co-extrusion barrier film could with symmetry or asymmetry structure. The ... 150μmWidthness350-6000mmCoil diameter300-600mmTensile StrengthMD/TD50/30MPaHaze8% Five layer co-extrusion blown and casting polyamide film (CPA